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| Author | Lusche, R.; Semenov, A.; Korneeva, Y.; Trifonov, A.; Korneev, A.; Gol'tsman, G.; Hübers, H.-W. | ||||
| Title | Effect of magnetic field on the photon detection in thin superconducting meander structures | Type | Journal Article | ||
| Year | 2014 | Publication | Phys. Rev. B | Abbreviated Journal  |
Phys. Rev. B |
| Volume | 89 | Issue | 10 | Pages | 104513 (1 to 7) |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We have studied the influence of an externally applied magnetic field on the photon and dark count rates of meander-type niobium nitride superconducting nanowire single-photon detectors. Measurements have been performed at a temperature of 4.2 K, and magnetic fields up to 250 mT have been applied perpendicularly to the meander plane. While photon count rates are field independent at weak applied fields, they show a strong dependence at fields starting from approximately ±25 mT. This behavior, as well as the magnetic field dependence of the dark count rates, is in good agreement with the recent theoretical model of vortex-assisted photon detection and spontaneous vortex crossing in narrow superconducting lines. However, the local reduction of the superconducting free energy due to photon absorption, which is the fitting parameter in the model, increases much slower with the photon energy than the model predicts. Furthermore, changes in the free-energy during photon counts and dark counts depend differently on the current that flows through the meander. This indicates that photon counts and dark counts occur in different parts of the meander. | ||||
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| ISSN | 1098-0121 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1367 | |||
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| Author | Zhang, J.; Słysz, W.; Pearlman, A.; Verevkin, A.; Sobolewski, R.; Okunev, O.; Chulkova, G.; Gol’tsman, G. N. | ||||
| Title | Time delay of resistive-state formation in superconducting stripes excited by single optical photons | Type | Journal Article | ||
| Year | 2003 | Publication | Phys. Rev. B | Abbreviated Journal |
Phys. Rev. B |
| Volume | 67 | Issue | 13 | Pages | 132508 (1 to 4) |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We have observed a 65(±5)-ps time delay in the onset of a resistive-state formation in 10-nm-thick, 130-nm-wide NbN superconducting stripes exposed to single photons. The delay in the photoresponse decreased to zero when the stripe was irradiated by multi-photon (classical) optical pulses. Our NbN structures were kept at 4.2 K, well below the material’s critical temperature, and were illuminated by 100-fs-wide optical pulses. The time-delay phenomenon has been explained within the framework of a model based on photon-induced generation of a hotspot in the superconducting stripe and subsequent, supercurrent-assisted, resistive-state formation across the entire stripe cross section. The measured time delays in both the single-photon and two-photon detection regimes agree well with theoretical predictions of the resistive-state dynamics in one-dimensional superconducting stripes. | ||||
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| ISSN | 0163-1829 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1519 | |||
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| Author | Gol'tsman, G. N.; Korneev, A.; Rubtsova, I.; Milostnaya, I.; Chulkova, G.; Minaeva, O.; Smirnov, K.; Voronov, B.; Słysz, W.; Pearlman, A.; Verevkin, A.; Sobolewski, R. | ||||
| Title | Ultrafast superconducting single-photon detectors for near-infrared-wavelength quantum communications | Type | Journal Article | ||
| Year | 2005 | Publication | Phys. Stat. Sol. (C) | Abbreviated Journal |
Phys. Stat. Sol. (C) |
| Volume | 2 | Issue | 5 | Pages | 1480-1488 |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We present our progress on the research and development of NbN superconducting single‐photon detectors (SSPD's) for ultrafast counting of near‐infrared photons for secure quantum communications. Our SSPD's operate in the quantum detection mode based on the photon‐induced hotspot formation and subsequent development of a transient resistive barrier across an ultrathin and submicron‐width superconducting stripe. The devices are fabricated from 4‐nm‐thick NbN films and kept in the 4.2‐ to 2‐K temperature range. The detector experimental quantum efficiency in the photon‐counting mode reaches above 40% for the visible light and up to 30% in the 1.3‐ to 1.55‐µm wavelength range with dark counts below 0.01 per second. The experimental real‐time counting rate is above 2 GHz and is limited by our readout electronics. The SSPD's timing jitter is below 18 ps, and the best‐measured value of the noise‐equivalent power (NEP) is 5 × 10–21 W/Hz1/2 at 1.3 µm. In terms of quantum efficiency, timing jitter, and maximum counting rate, our NbN SSPD's significantly outperform semiconductor avalanche photodiodes and photomultipliers in the 1.3‐ to 1.55‐µm range. | ||||
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| ISSN | 1610-1634 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1479 | |||
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| Author | Il'in, K. S.; Gol'tsman, G. N.; Voronov, B. M.; Sobolewski, Roman | ||||
| Title | Characterization of the electron energy relaxation process in NbN hot-electron devices | Type | Conference Article | ||
| Year | 1999 | Publication | Proc. 10th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 10th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 390-397 | ||
| Keywords | HEB mixers, SSPD, SNSPD, NbN films, Nb films | ||||
| Abstract | We report on transient measurements of electron energy relaxation in NbN films with 300-fs time resolution. Using an electro-optic sampling technique, we have studied the photoresponse of 3.5-nm-thick NbN films deposited on sapphire substrates and exposed to 100-fs-wide optical pulses. Our experimental data analysis was based on the two-temperature model and has shown that in our films at the superconducting transition 10.5 K the inelastic electron-phonon scattering time was about (111}+-__.2) ps. This response time indicated that the maximum intermediate-frequency band of a NbN hot-electron phonon-cooled mixer should reach (16+41-3) GHz if one eliminates the bolometric phonon-heating effect. We have suggested several ways to increase the effectiveness of phonon cooling to achieve the above intrinsic value of the NbN mixer bandwidth. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1576 | |||
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| Author | Verevkin, A.; Xu, Y.; Zheng, X.; Williams, C.; Sobolewski, Roman; Okunev, O.; Smirnov, K.; Chulkova, G.; Korneev, A.; Lipatov, A.; Gol’tsman, G. N. | ||||
| Title | Superconducting NbN-based ultrafast hot-electron single-photon detector for infrared range | Type | Conference Article | ||
| Year | 2001 | Publication | Proc. 12th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 12th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 462-468 | ||
| Keywords | NbN SSPD, SNSPD | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1539 | |||
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| Author | Stellari, Franco; Song, Peilin | ||||
| Title | Testing of ultra low voltage CMOS microprocessors using the superconducting single-photon detector (SSPD) | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. 12th IPFA | Abbreviated Journal |
Proc. 12th IPFA |
| Volume | Issue | Pages | 2 | ||
| Keywords | SSPD, CMOS testing | ||||
| Abstract | In F. Stellari and P. Song (2004) the authors have shown a comparison among different detectors used for diagnosing integrated circuits (ICs) by means of the PICA method. In their experiments they used two versions of the SSPD detector (p-SSPD is a prototype version, while c-SSPD is the first commercially available generation of the detector as presented in W. K. Lo et al. (2002), as well as the imaging detector (S-25 photo-multiplier tube (PMT) as discussed in W. G. McMullan (1987)) used in the conventional PICA technique. A microprocessor chip fabricated in a 0.13 μm 1.2 V technology is used to show that c-SSPD provides a significant reduction in acquisition time for the collection of optical waveforms from chips running at very low. In this paper, the authors summarize the main results. | ||||
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| Publisher | IEEE | Place of Publication | Editor | ||
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| ISSN | ISBN | 0-7803-9301-5 | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1055 | |||
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| Author | Verevkin, A.; Zhang, J.; Slysz, W.; Sobolewski, Roman; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smimov, K.; Gol'tsman, G. N. | ||||
| Title | Spectral sensitivity and temporal resolution of NbN superconducting single-photon detectors | Type | Conference Article | ||
| Year | 2002 | Publication | Proc. 13th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 13th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 105-111 | ||
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We report our studies on spectral sensitivity and time resolution of superconducting NbN thin film single-photon detectors (SPDs). Our SPDs exhibit an everimentally measured detection efficiencies (DE) from — 0.2% at 2=1550 nm up to —3% at lambda=405 nm wavelength for 10-nm film thickness devices and up to 3.5% at lambda=1550 nm for 3.5-nm film thickness devices. Spectral dependences of detection efficiency (DE) at 2=0.4 —3.0 pm range are presented. With variable optical delay setup, it is shown that NbN SPD potentially can resolve optical pulses with the repetition rate up to 10 GHz at least. The observed full width at the half maximum (FWHM) of the signal pulse is about 150-180 ps, limited by read-out electronics. The jitter of NbN SPD is measured to be —35 ps at optimum biasing. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1528 | |||
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| Author | Ryabchun, S.; Korneev, A.; Matvienko, V.; Smirnov, K.; Kouminov, P.; Seleznev, V.; Kaurova, N.; Voronov, B.; Gol’tsman, G. N. | ||||
| Title | Superconducting single photon detectors array based on hot electron phenomena | Type | Conference Article | ||
| Year | 2004 | Publication | Proc. 15th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 15th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 242-247 | ||
| Keywords | NbN SSPD arrays, SNSPD | ||||
| Abstract | In this paper we propose to use time domain multiplexing for large format arrays of superconducting single photon detectors (SSPDs) of the terahertz, visible and infrared frequency ranges based on ultrathin superconducting NbN films. Effective realization of time domain multiplexing for SSPD arrays is possible due to a short electric pulse of the SSPD as response to radiation quantum absorption, picosecond jitter and extremely low noise equivalent power (NEP). We present experimental results of testing 2×2 arrays in the infrared waveband. The measured noise equivalent power in the infrared and expected for the terahertz waveband is 10 – 21 WHz -1/2 . The best quantum efficiency (QE) of SSPD is 50% at 1.3 µm wavelength. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1493 | |||
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| Author | Zhang, J.; Pearlman, A.; Slysz, W.; Verevkin, A.; Sobolewski, R.; Wilsher, K.; Lo, W.; Okunev, O.; Korneev, A.; Kouminov, P.; Chulkova, G.; Gol’tsman, G. N. | ||||
| Title | A superconducting single-photon detector for CMOS IC probing | Type | Conference Article | ||
| Year | 2003 | Publication | Proc. 16-th LEOS | Abbreviated Journal |
Proc. 16-th LEOS |
| Volume | 2 | Issue | Pages | 602-603 | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | In this paper, a novel, time-resolved, NbN-based, superconducting single-photon detector (SSPD) has been developed for probing CMOS integrated circuits (ICs) using photon emission timing analysis (PETA). | ||||
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| Area | Expedition | Conference | The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003. LEOS 2003. | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1510 | |||
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| Author | Smirnov, K.; Korneev, A.; Minaeva, O.; Divochij, A.; Rubtsova, I.; Antipov, A.; Ryabchun, S.; Okunev, O.; Milostnaya, I.; Chulkova, G.; Voronov, B.; Kaurova, N.; Seleznev, V.; Korotetskaya, Y.; Gol’tsman, G. | ||||
| Title | Superconducting single-photon detector for near- and middle IR wavelength range | Type | Conference Article | ||
| Year | 2006 | Publication | Proc. 16th Int. Crimean Microwave and Telecommunication Technology | Abbreviated Journal |
Proc. 16th Int. Crimean Microwave and Telecommunication Technology |
| Volume | 2 | Issue | Pages | 684-685 | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | Presented in this paper are the results of research of NbN-film superconducting single-photon detector. At 2 K temperature, quantum efficiency in the visible light (0.56 mum) reaches 30-40 %. With the wavelength increase quantum efficiency decreases and comes to 20% at 1.55 mum and 0.02% at 5.6 mum. Minimum dark counts rate is 2times10-4s-1. The jitter of detector is 35 ps. The detector was successfully implemented for integrated circuits non-invasive optical testing. It is also perspective for quantum cryptography systems | ||||
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| Language | Russian | Summary Language | Original Title | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1447 | |||
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| Author | Gol'tsman, G.; Korneev, A.; Minaeva, O.; Rubtsova, I.; Milostnaya, I.; Chulkova, G.; Voronov, B.; Smirnov, K.; Seleznev, V.; Słysz, W.; Kitaygorsky, J.; Cross, A.; Pearlman, A.; Sobolewski, Roman | ||||
| Title | Superconducting nanostructured detectors capable of single-photon counting in the THz range | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. 16th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 16th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 555-557 | ||
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We present the results of the NbN superconducting single-photon detector sensitivity measurement in the visible to mid-IR range. For visible and near IR light (0.56 — 1.3μm wavelengths) the detector exhibits 30% quantum efficiency saturation value limited by the NbN film absorption and extremely low level of dark counts (2x10 -4 s -1). The detector manifested single-photon counting up to 6 μm wavelength with the quantum efficiency reaching 10 -2 % at 5.6 μm and 3 K temperature. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1476 | |||
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| Author | Tarkhov, M.; Morozov, D.; Mauskopf, P.; Seleznev, V.; Korneev, A.; Kaurova, N.; Rubtsova, I.; Minaeva, O.; Voronov, B.; Goltsman, G. | ||||
| Title | Single photon counting detector for THz radioastronomy | Type | Conference Article | ||
| Year | 2006 | Publication | Proc. 17th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 17th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 119-122 | ||
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | In this paper we present the results of the research on the superconducting NbN-ultrathin-film single- photon detectors (SSPD) which are capable to detect single quanta in middle IR range. The detection mechanism is based on the hotspot formation in quasi-two-dimensional superconducting structures upon photon absorption. Spectral measurements showed that up to 5.7 gm wavelength (52 THz) the SSPD exhibits single-photon sensitivity. Reduction of operation temperature to 1.6 K allowed us to measure quantum efficiency of -4% at 60 THz. Although further decrease of the operation temperature far below 1 K does not lead to any significant increase of quantum efficiency. We expect that the improvement of the SSPD's performance at reduced operation temperature will make SSPD a practical detector with high characteristics for much lower THz frequencies as well. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1438 | |||
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| Author | Chulkova, G.; Milostnaya, I.; Korneev, A.; Minaeva, O.; Rubtsova, I.; Voronov, B.; Okunev, O.; Smirnov, K.; Gol’tsman, G.; Kitaygorsky, J.; Cross, A.; Pearlman, A.; Sobolewski, R.; Slysz, W. | ||||
| Title | Superconducting nanostructures for counting of single photons in the infrared range | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. 2-nd CAOL | Abbreviated Journal |
Proc. 2-nd CAOL |
| Volume | 2 | Issue | Pages | 100-103 | |
| Keywords | SSPD, SNSPD | ||||
| Abstract | We present our studies on ultrafast superconducting single-photon detectors (SSPDs) based on ultrathin NbN nanostructures. Our SSPDs are patterned by electron beam lithography from 4-nm thick NbN film into meander-shaped strips covering square area of 10/spl times/10 /spl mu/m/sup 2/. The advances in the fabrication technology allowed us to produce highly uniform 100-120-nm-wide strips with meander filling factor close to 0.6. The detectors exploit a combined detection mechanism, where upon a single-photon absorption, an avalanche of excited hot electrons and the biasing supercurrent, jointly produce a picosecond voltage transient response across the superconducting nanostrip. The SSPDs are typically operated at 4.2 K, but they have shown that their sensitivity in the infrared radiation range can be significantly improved by lowering the operating temperature from 4.2 K to 2 K. When operated at 2 K, the SSPD quantum efficiency (QE) for visible light photons reaches 30-40%, which is the saturation value limited by optical absorption of our 4-nm-thick NbN film. For 1.55 /spl mu/m photons, QE was /spl sim/20% and decreases exponentially with the increase of the optical wavelength, but even at the wavelength of 6 /spl mu/m the detector remains sensitive to single photons and exhibits QE of about 10/sup -2/%. The dark (false) count rate at 2 K is as low as 2 /spl times/ 10/sup -4/ s/sup -1/, what makes our detector essentially a background-limited sensor. The very low dark-count rate results in the noise equivalent power (NEP) as low as 10/sup -18/ WHz/sup -1/2/ for the mid-infrared range (6 /spl mu/m). Further improvement of the SSPD performance in the mid-infrared range can be obtained by substituting NbN for the other, lower-T/sub c/ superconductors with the narrow superconducting gap and low quasiparticle diffusivity. The use of such materials will shift the cutoff wavelength towards the values even longer than 6 /spl mu/m. | ||||
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| Area | Expedition | Conference | Second International Conference on Advanced Optoelectronics and Lasers | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1461 | |||
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| Author | Okunev, O.; Chulkova, G.; Milostnaya, I.; Antipov, A.; Smirnov, K.; Morozov, D.; Korneev, A.; Voronov, B.; Gol’tsman, G.; Stysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Gorska, M.; Pearlman, A.; Cross, A.; Kitaygorsky, J.; Sobolewski, R. | ||||
| Title | Registration of infrared single photons by a two-channel receiver based on fiber-coupled superconducting single-photon detectors | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. 2-nd CAOL | Abbreviated Journal |
Proc. 2-nd CAOL |
| Volume | 2 | Issue | Pages | 282-285 | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | Single-photon detectors (SPDs) are the foundation of all quantum communications (QC) protocols. Among different classes of SPDs currently studied, NbN superconducting SPDs (SSPDs) are established as the best devices for ultrafast counting of single photons in the infrared (IR) wavelength range. The SSPDs are nanostructured, 100 /spl mu/m/sup 2/ in total area, superconducting meanders, patterned by electron lithography in ultra-thin NbN films. Their operation has been explained within a phenomenological hot-electron photoresponse model. We present the design and performance of a novel, two-channel SPD receiver, based on two fiber-coupled NbN SSPDs. The receivers have been developed for fiber-based QC systems, operational at 1.3 /spl mu/m and 1.55 /spl mu/m telecommunication wavelengths. They operate in the temperature range from 4.2 K to 2 K, in which the NbN SSPDs exhibit their best performance. The receiver unit has been designed as a cryostat insert, placed inside a standard liquid-helium storage dewar. The input of the receiver consists of a pair of single-mode optical fibers, equipped with the standard FC connectors and kept at room temperature. Coupling between the SSPD and the fiber is achieved using a specially designed, precise micromechanical holder that places the fiber directly on top of the SSPD nanostructure. Our receivers achieve the quantum efficiency of up to 7% for near-IR photons, with the coupling efficiency of about 30%. The response time was measured to be <300 ps and it was limited by our read-out electronics. The jitter of fiber-coupled SSPDs is <35 ps and their dark-count rate is below 1 s/sup -1/. The presented performance parameters show that our single-photon receivers are fully applicable for quantum-correlation-type QC systems, including practical quantum cryptography. | ||||
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| Area | Expedition | Conference | Second International Conference on Advanced Optoelectronics and Lasers | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1462 | |||
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| Author | Shcherbatenko, M.; Lobanov, Y.; Kovalyuk, V.; Korneev, A.; Gol'tsman, G. N. | ||||
| Title | Photon counting detector as a mixer with picowatt local oscillator power requirement | Type | Conference Article | ||
| Year | 2016 | Publication | Proc. 27th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 27th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 110 | ||
| Keywords | SSPD mixer, SNSPD | ||||
| Abstract | At the current stage of the heterodyne receiver technology, great attention is paid to the development of detector arrays and matrices comprising many detectors on a single wafer. However, any traditional THz detector (such as SIS, HEB, or Schottky diode) requires quite a noticeable amount of Local Oscillator (LO) power which scales with the matrix size, and the total amount of the LO power needed is much greater than that available from compact and handy solid state sources. Substantial reduction of the LO power requirement may be obtained with a photon-counting detector used as a mixer. This approach, mentioned earlier in [1,2] provides a number of advantages. Thus, sensitivity of such a detector would be at the quantum limit (because of the photon-counting nature of the detector) and just a few LO photons for the mixing would be required leading to a possible breakthrough in the matrix receiver development. In addition, the receiver could be easily tuned from the heterodyne to the direct detection mode without any loss in its sensitivity with the latter limited only by the quantum efficiency of the detector used. We demonstrate such a technique with the use of the Superconducting Nanowire Single Photon Detector(SNSPD)[3] irradiated by both 1.5 μm LO with a tiny amount of power (from a few picowatts down to femtowatts) facing the detector, and the test signal with a power significantly less than that of the LO. The SNSPD was operated in the current mode and the bias current was slightly below its critical value. Irradiating the detector with either the LO or the signal source produced voltage pulses which are statistically evenly distributed and could be easily counted by a lab counter or oscilloscope. Irradiating the detector by the both lasers simultaneously produced pulses at the frequency f m which is the exact difference between the frequencies at which the two lasers operate. f m could be deduced form either counts statistics integrated over a sufficient time interval or with the help of an RF spectrum analyzer. In addition to the chip SNSPD with normal incidence coupling, we use the detectors with a travelling wave geometry design [4]. In this case a niobium nitride nanowire is placed on the top of a nanophotonic waveguide, thus increasing the efficient interaction length. Integrated device scheme allows us to measure the optical losses with high accuracy. Our approach is fully scalable and, along with a large number of devices integrated on a single chip can be adapted to the mid and far IR ranges. This work was supported in part by the Ministry of Education and Science of the Russian Federation, contract no. 14.B25.31.0007 and by RFBR grant # 16-32-00465. 1. Leaf A. Jiang and Jane X. Luu, ―Heterodyne detection with a weak local oscillator, Applied Optics Vol. 47, Issue 10, pp. 1486-1503 (2008) 2. Matsuo H. ―Requirements on Photon Counting Detectors for Terahertz Interferometry J Low Temp Phys (2012) 167:840–845 3. A. Semenov, G. Gol'tsman, A. Korneev, “Quantum detection by current carrying superconducting film”, Physica C, 352, pp. 349-356 (2001) 4. O. Kahl, S. Ferrari, V. Kovalyuk, G. N. Goltsman, A. Korneev, and W. H. P. Pernice, ―Waveguide integrated superconducting single-photon detectors with high internal quantum efficiency at telecom wavelengths., Sci. Rep., vol. 5, p. 10941, (2015). | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1203 | |||
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| Author | Rubtsova, I.; Korneev, A.; Matvienko, V.; Chulkova, G.; Milostnaya, I.; Goltsman, G.; Pearlman, A.; Slysz, W.; Verevkin, A.; Sobolewski, R. | ||||
| Title | Spectral sensitivity, quantum efficiency, and noise equivalent power of NbN superconducting single-photon detectors in the IR range | Type | Conference Article | ||
| Year | 2004 | Publication | Proc. 29th IRMMW / 12th THz | Abbreviated Journal |
Proc. 29th IRMMW / 12th THz |
| Volume | Issue | Pages | 461-462 | ||
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We have developed nanostructured NbN superconducting single-photon detectors capable of GHz-rate photon counting in the 0.4 to 5 /spl mu/m wavelength range. Quantum efficiency of 30%, dark count rate 3/spl times/10/sup -4/ s/sup -1/, and NEP=10/sup -20/ W/Hz/sup -1/2/ have been measured at the 1.3-/spl mu/m wavelength for the device operating at 2.0 K. | ||||
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| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1507 | |||
| Permanent link to this record | |||||
| Author | Sych, Denis; Shcherbatenko, Michael; Elezov, Michael; Goltsman, Gregory N. | ||||
| Title | Towards the improvement of the heterodyne receiver sensitivity beyond the quantum noise limit | Type | Conference Article | ||
| Year | 2018 | Publication | Proc. 29th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
Proc. 29th Int. Symp. Space Terahertz Technol. |
| Volume | Issue | Pages | 245-247 | ||
| Keywords | standard quantum limit, sub-SQL quantum receiver, Kennedy receiver, SSPD, SNSPD | ||||
| Abstract | Noise reduction in heterodyne receivers of the terahertz range is an important issue for astronomical applications. Quantum fluctuations, also known as shot noise, prohibit errorless measurements of the amplitude of electro-magnetic waves, and introduce the so-called standard quantum limit (SQL) on the minimum error of the heterodyne measurements. Nowadays, the sensitivity of modern heterodyne receivers approaches the SQL, and the growing demand for the improvement of measurement precision stimulates a number of both theoretical and experimental efforts to design novel measurement techniques aimed at overcoming the SQL. Here we demonstrate the first steps towards the practical implementation of a sub-SQL quantum receiver. As the principal resources, it requires a highly efficient single-photon counting detector and an interferometer-based scheme for mixing the signal with a low-power local oscillator. We describe the idea of such receiver and its main components. | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1314 | |||
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| Author | Zolotov, P. I.; Vakhtomin, Yu. B.; Divochiy, A. V.; Seleznev, V. A.; Smirnov, K. V. | ||||
| Title | Technology development of resonator-based structures for efficiency increasing of NBN detectors of IR single photons | Type | Journal Article | ||
| Year | 2016 | Publication | Proc. 5th Int. Conf. Photonics and Information Optics | Abbreviated Journal |
Proc. 5th Int. Conf. Photonics and Information Optics |
| Volume | Issue | Pages | 115-116 | ||
| Keywords | NbN SSPD | ||||
| Abstract | This paper presents a technology of fabrication of NbN superconductive single- photon detectors, using resonator structures. The main results are related to optimization of the process of NbN sputtering over substrate with metallic mirrors and SiO 2 /Si 3 N 4 layers /4 thick. Investigation of the quantum efficiency of fabricated devices at 1.6 K on 1.55 μm showed triple-magnified value compared to standard Si/NbN structures. | ||||
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| Language | Russian | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-5-7262-2215-8 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | http://fioconf.mephi.ru/files/2015/12/FIO2016-Sbornik.pdf Разработка технологии создания резонаторных структур для увеличения квантовой эффективности NBN детекторов ИК-фотонов | Approved | no | ||
| Call Number | Serial | 1811 | |||
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| Author | Sáysz, Wojciech; Guziewicz, Marek; Bar, Jan; Wegrzecki, Maciej; Grabiec, Piotr; Grodecki, Remigiusz; Wegrzecka, Iwona; Zwiller, Val; Milosnaya, Irina; Voronov, Boris; Gol’tsman, Gregory; Kitaygorsky, Jen; Sobolewski, Roman | ||||
| Title | Superconducting NbN nanostructures for single photon quantum detectors | Type | Abstract | ||
| Year | 2008 | Publication | Proc. 7-th Int. Conf. Ion Implantation and Other Applications of Ions and Electrons | Abbreviated Journal |
Proc. 7-th Int. Conf. Ion Implantation and Other Applications of Ions and Electrons |
| Volume | Issue | Pages | 160 | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | Practical quantum systems such as quantum communication (QC) or quantum measurement systems require detectors with high speed, high sensitivity, high quantum efficiency (QE), and short deadtimes along with precise timing characteristics and low dark counts. Superconducting single photon detectors (SSPDs) based on ultrathin meander type NbN nanostripes (operated at T=2-5K) are a new and highly promising type of devices fulfilling above requirements. In this paper we present results of the SSPDs nanostructure technological optimization. The base for our detector is thin-film (4nm) NbN layer deposited on 350- P m-thick sapphire substrate The active element of the detector is a meander- nanostructure made of 4-nm-thick and 100-nm-wide NbN stripe, covering 10 u 10 P m 2 area with the filling factor ~0,5. The NbN superconducting films were deposited on sapphire substrates by DC reactive magnetron sputtering whereas the meander element of the detector was patterned by the direct electron-beam lithography followed by reactive-ion etching. To enhance the SSPD efficiency at Ȝ = 1.55 P m, we have performed an approach to increase the absorption of the detector by integrating it with optical resonant cavity. An optical microcavity optimized for absorption of 1.55 P m photons was designed as an one-mirror resonator consisting of a Ȝ/4 dielectric layer and a metallic mirror. The microcavity was deposited on the top of the NbN SSPD meander. The resonator was formed by the dielectric SiO 2 layer and metal mirror made of gold or palladium. Microcavity layers were deposited using a magnetron sputtering system. | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1409 | |||
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| Author | Moshkova, M. A.; Divochiy, A. V.; Morozov, P. V.; Antipov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V. | ||||
| Title | Characterization of topologies of superconducting photon number resolving detectors | Type | Conference Article | ||
| Year | 2019 | Publication | Proc. 8th Int. Conf. Photonics and Information Optics | Abbreviated Journal |
Proc. 8th Int. Conf. Photonics and Information Optics |
| Volume | Issue | Pages | 465-466 | ||
| Keywords | PNR SSPD | ||||
| Abstract | Comparative analysis for different topologies of superconducting single-photon detectors with ability to resolve up to 4 photons in a short pulse of IR radiation has been carry out. It was developed the detector with a system detection efficiency of ~ 85 % at λ = 1550 nm. The possibility of using such detector to restore photon statistics of a pulsed radiation source was demonstrated. | ||||
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| Publisher | Place of Publication | Editor | |||
| Language | Russian | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-5-7262-2536-4 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | http://fioconf.mephi.ru/files/2018/12/FIO2019-Sbornik.pdf | Approved | no | ||
| Call Number | Serial | 1803 | |||
| Permanent link to this record | |||||
| Author | Baeva, E.; Sidorova, M.; Korneev, A.; Goltsman, G. | ||||
| Title | Precise measurement of the thermal conductivity of superconductor | Type | Conference Article | ||
| Year | 2018 | Publication | Proc. AIP Conf. | Abbreviated Journal |
Proc. AIP Conf. |
| Volume | 1936 | Issue | 1 | Pages | 020003 (1 to 4) |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | Measuring the thermal properties such as the heat capacity provide information about intrinsic mechanisms operated inside. In general, the ratio between electron and phonon specific heat Ce/Cp shows how the absorbed energy shared between electron and phonon subsystems. In this work we make estimations for amplitude-modulated absorption of THz radiation technique for investigation of the ratio Ce/Cp in superconducting Niobium Nitride (NbN) at T = Tc. Our results indicates that experimentally the frequency of modulation has to be extra large to extract the quantity. We perform a new technique allowed to work at low frequency with accurately measurement of absorbed power. | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | doi:10.1063/1.5025441 | Serial | 1311 | ||
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| Author | Semenov, A. D.; Hübers, H.-W.; Gol’tsman, G. N.; Smirnov, K. | ||||
| Title | Superconducting quantum detector for astronomy and X-ray spectroscopy | Type | Conference Article | ||
| Year | 2002 | Publication | Proc. Int. Workshop on Supercond. Nano-Electronics Devices | Abbreviated Journal |
Proc. Int. Workshop on Supercond. Nano-Electronics Devices |
| Volume | Issue | Pages | 201-210 | ||
| Keywords | NbN SSPD, SNSPD, SQD, superconducting quantum detectors, X-ray spectroscopy | ||||
| Abstract | We propose the novel concept of ultra-sensitive energy-dispersive superconducting quantum detectors prospective for applications in astronomy and X-ray spectroscopy. Depending on the superconducting material and operation conditions, such detector may allow realizing background limited noise equivalent power 10−21 W Hz−1/2 in the terahertz range when exposed to 4-K background radiation or counting of 6-keV photon with almost 10—4 energy resolution. Planar layout and relatively simple technology favor integration of elementary detectors into a detector array. | ||||
| Address | Naples, Italy | ||||
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| Publisher | Springer | Place of Publication | Boston, MA | Editor | Pekola, J.; Ruggiero, B.; Silvestrini, P. |
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-1-4615-0737-6 | Medium | ||
| Area | Expedition | Conference | International Workshop on Superconducting Nano-Electronics Devices, May 28-June 1, 2001 | ||
| Notes | Approved | no | |||
| Call Number | semenov2002superconducting | Serial | 1525 | ||
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| Author | Goltsman, G. | ||||
| Title | Quantum-photonic integrated circuits | Type | Conference Article | ||
| Year | 2019 | Publication | Proc. IWQO | Abbreviated Journal |
Proc. IWQO |
| Volume | Issue | Pages | 22-23 | ||
| Keywords | WSSPD, waveguide SSPD, SNSPD, quantum optics, integrated optics, superconducting nanowire single-photon detector | ||||
| Abstract | We show the design, a history of development as well as the most successful and promising approaches for QPICs realization based on hybrid nanophotonic-superconducting devices, where one of the key elements of such a circuit is a waveguide integrated superconducting single-photon detector (WSSPD). The potential of integration with fluorescent molecules is discussed also. | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1287 | |||
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| Author | Ryabchun, S.; Smirnov, A.; Pentin, I.; Vakhtomin, Yu.; Smirnov, K.; Kaurova, N.; Voronov, B.; Goltsman, G. | ||||
| Title | Superconducting single photon detector integrated with optical cavity | Type | Conference Article | ||
| Year | 2011 | Publication | Proc. MLPLIT | Abbreviated Journal |
Proc. MLPLIT |
| Volume | Issue | Pages | 143-145 | ||
| Keywords | NbN SSPD, cavity | ||||
| Abstract | |||||
| Address | Suzdal / Vladimir (Russia) | ||||
| Corporate Author | Thesis | ||||
| Publisher | Modern laser physics and laser-information technologies for science and manufacture | Place of Publication | Editor | ||
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| Area | Expedition | Conference | 1st international russian-chinese conference / youthschool-workshop | ||
| Notes | September 23-28, 2011 | Approved | no | ||
| Call Number | Serial | 1385 | |||
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| Author | Kurochkin, V. L.; Zverev, A. V.; Kurochkin, Y. V.; Ryabtsev, I. I.; Neizvestnyi, I. G.; Ozhegov, R. V.; Gol’tsman, G. N.; Larionov, P. A. | ||||
| Title | Long-distance fiber-optic quantum key distribution using superconducting detectors | Type | Conference Article | ||
| Year | 2015 | Publication | Proc. Optoelectron. Instrum. | Abbreviated Journal |
Proc. Optoelectron. Instrum. |
| Volume | 51 | Issue | 6 | Pages | 548-552 |
| Keywords | QKD, SSPD, SNSPD | ||||
| Abstract | This paper presents the results of experimental studies on quantum key distribution in optical fiber using superconducting detectors. Key generation was obtained on an experimental setup based on a self-compensation optical circuit with an optical fiber length of 101.1 km. It was first shown that photon polarization encoding can be used for quantum key distribution in optical fiber over a distance in excess of 300 km. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 8756-6990 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1342 | |||
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| Author | Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Tarkhov, M. A.; Gol’tsman, G. N. | ||||
| Title | Single-photon detectors for the visible and infrared parts of the spectrum based on NbN nanostructures | Type | Abstract | ||
| Year | 2009 | Publication | Proc. Progress In Electromagnetics Research Symp. | Abbreviated Journal |
Proc. Progress In Electromagnetics Research Symp. |
| Volume | Issue | Pages | 863-864 | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | The research by the group of Moscow State Pedagogical University into the hot-electron phenomena in thin superconducting films has led to the development of new types ofdetectors [1, 2] and their use both in fundamental and applied studies [3–6]. In this paper, wepresent the results of the development and fabrication of receiving systems for the visible andinfrared parts of the spectrum optimised for use in telecommunication systems and quantumcryptography. | ||||
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| Publisher | Place of Publication | Moscow, Russia | Editor | ||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ sasha @ smirnovsession | Serial | 1050 | ||
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| Author | Korneev, A. A. | ||||
| Title | Superconducting NbN microstrip single-photon detectors | Type | Abstract | ||
| Year | 2021 | Publication | Proc. Quantum Optics and Photon Counting | Abbreviated Journal |
Proc. Quantum Optics and Photon Counting |
| Volume | 11771 | Issue | Pages | ||
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | Superconducting Single-Photon Detectors (SSPD) invented two decades ago have evolved to a mature technology and have become devices of choice in the advanced applications of quantum optics, such as quantum cryptography and optical quantum computing. In these applications SSPDs are coupled to single-mode fibers and feature almost unity detection efficiency, negligible dark counts, picosecond timing jitter and MHz photon count rate. Meanwhile, there are great many applications requiring coupling to multi-mode fibers or free space. ‘Classical’ SSPDs with 100-nm-wide superconducting strip and covering area of about 100 µm2 are not suitable for further scaling due to degradation of performance and low fabrication yield. Recently we have demonstrated single-photon counting in micron-wide superconducting bridges and strips. Here we present our approach to the realization of practical photon-counting detectors of large enough area to be efficiently coupled to multi-mode fibers or free space. The detector is either a meander or a spiral of 1-µm-wide strip covering an area of 50x50 µm2. Being operated at 1.7K temperature it demonstrates the saturated detection efficiency (i.e. limited by the absorption in the detector) up to 1550 nm wavelength, about 10 ns dead time and timing jitter in range 50-100 ps. | ||||
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| Publisher | SPIE | Place of Publication | Editor | Prochazka, I.; Štefaňák, M.; Sobolewski, R.; Gábris, A. | |
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| Area | Expedition | Conference | Quantum Optics and Photon Counting; SPIE Optics + Optoelectronics, 2021, Online Only | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1784 | |||
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| Author | Zolotov, P.; Vakhtomin, Yu.; Divochiy, A.; Morozov, P.; Seleznev, V.; Smirnov, K | ||||
| Title | Development of fast and high-effective single-photon detector for spectrum range up to 2.3 μm | Type | Conference Article | ||
| Year | 2017 | Publication | Proc. SPBOPEN | Abbreviated Journal |
Proc. SPBOPEN |
| Volume | Issue | Pages | 439-440 | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | We present the results of development and testing of the single-photon-counting system operating in the wide spectrum rane up to 2.3 mcm. We managed to increase system detection efficiency up to 60% in the range of 1.7-2.3 mcm optimisation of the fabrication methods of superconducting single-photon detectors and application of the single-mode fiber with enlarged core diameter. | ||||
| Address | St. Petersburg, Russia | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1255 | |||
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| Author | Kovalyuk, V.; Ferrari, S.; Kahl, O.; Semenov, A.; Lobanov, Yu; Shcherbatenko, M.; Korneev, A; Pernice, W.; Goltsman, G. | ||||
| Title | Waveguide integrated superconducting single-photon detector for on-chip quantum and spectral photonic application | Type | Conference Volume | ||
| Year | 2017 | Publication | Proc. SPBOPEN | Abbreviated Journal |
Proc. SPBOPEN |
| Volume | Issue | Pages | 421-422 | ||
| Keywords | waveguide, SSPD, SNSPD | ||||
| Abstract | By adopting a travelling-wave geometry approach, integrated superconductor- nanophotonic devices were fabricated. The architecture consists of a superconducting NbN- nanowire atop of a silicon nitride (Si 3 N 4 ) nanophotonic waveguide. NbN-nanowire was operated as a single-photon counting detector, with up to 92% on-chip detection efficiency (OCDE), in the coherent mode, serving as a highly sensitive IR heterodyne mixer with spectral resolution (f/df) greater than 10^6 in C-band at 1550 nm wavelength. | ||||
| Address | St. Petersburg, Russia | ||||
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| Notes | Duplicated as 1140 | Approved | no | ||
| Call Number | Serial | 1256 | |||
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| Author | Korneev, Alexander; Korneeva, Yulia; Florya, Irina; Elezov, Michael; Manova, Nadezhda; Tarkhov, Michael; An, Pavel; Kardakova, Anna; Isupova, Anastasiya; Chulkova, Galina; Voronov, Boris | ||||
| Title | Recent advances in superconducting NbN single-photon detector development | Type | Conference Article | ||
| Year | 2011 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 8072 | Issue | Pages | 807202 (1 to 10) | |
| Keywords | SSPD | ||||
| Abstract | Superconducting single-photon detector (SSPD) is a planar nanostructure patterned from 4-nm-thick NbN film deposited on sapphire substrate. The sensitive element of the SSPD is 100-nm-wide NbN strip. The device is operated at liquid helium temperature. Absorption of a photon leads to a local suppression of superconductivity producing subnanosecond-long voltage pulse. In infrared (at 1550 nm and longer wavelengths) SSPD outperforms avalanche photodiodes in terms of detection efficiency (DE), dark counts rate, maximum counting rate and timing jitter. Efficient single-mode fibre coupling of the SSPD enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. Recently we managed to improve the SSPD performance and measured 25% detection efficiency at 1550 nm wavelength and dark counts rate of 10 s-1. We also improved photon-number resolving SSPD (PNR-SSPD) which realizes a spatial multiplexing of incident photons enabling resolving of up to 4 simultaneously absorbed photons. Another improvement is the increase of the photon absorption using a λ/4 microcavity integrated with the SSPD. And finally in our strive to increase the DE at longer wavelengths we fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm and demonstrated that in middle infrared (about 3 μm wavelength) these devices have DE several times higher compared to the traditional SSPDs. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 663 | ||
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| Author | Korneev, A.; Divochiy, A.; Marsili, F.; Bitauld, D.; Fiore, A.; Seleznev, V.; Kaurova, N.; Tarkhov, M.; Minaeva, O.; Chulkova, G.; Smirnov, K.; Gaggero, A.; Leoni, R.; Mattioli, F.; Lagoudakis, K.; Benkhaoul, M.; Levy, F.; Goltsman, G. | ||||
| Title | Superconducting photon number resolving counter for near infrared applications | Type | Conference Article | ||
| Year | 2008 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 7138 | Issue | Pages | 713828 (1 to 5) | |
| Keywords | PNR SSPD; SNSPD; Nanowire superconducting single-photon detector, ultrathin NbN film, infrared | ||||
| Abstract | We present a novel concept of photon number resolving detector based on 120-nm-wide superconducting stripes made of 4-nm-thick NbN film and connected in parallel (PNR-SSPD). The detector consisting of 5 strips demonstrate a capability to resolve up to 4 photons absorbed simultaneously with the single-photon quantum efficiency of 2.5% and negligibly low dark count rate. | ||||
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| Publisher | Spie | Place of Publication | Editor | Tománek, P.; Senderáková, D.; Hrabovský, M. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | 10.1117/12.818079 | Serial | 1241 | ||
| Permanent link to this record | |||||
| Author | Ozhegov, R.; Elezov, M.; Kurochkin, Y.; Kurochkin, V.; Divochiy, A.; Kovalyuk, V.; Vachtomin, Y.; Smirnov, K.; Goltsman, G. | ||||
| Title | Quantum key distribution over 300 | Type | Conference Article | ||
| Year | 2014 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 9440 | Issue | Pages | 1F (1 to 9) | |
| Keywords | SSPD, SNSPD applicatins, quantum key distribution, QKD | ||||
| Abstract | We discuss the possibility of polarization state reconstruction and measurement over 302 km by Superconducting Single- Photon Detectors (SSPDs). Because of the excellent characteristics and the possibility to be effectively coupled to singlemode optical fiber many applications of the SSPD have already been reported. The most impressive one is the quantum key distribution (QKD) over 250 km distance. This demonstration shows further possibilities for the improvement of the characteristics of quantum-cryptographic systems such as increasing the bit rate and the quantum channel length, and decreasing the quantum bit error rate (QBER). This improvement is possible because SSPDs have the best characteristics in comparison with other single-photon detectors. We have demonstrated the possibility of polarization state reconstruction and measurement over 302.5 km with superconducting single-photon detectors. The advantage of an autocompensating optical scheme, also known as “plugandplay” for quantum key distribution, is high stability in the presence of distortions along the line. To increase the distance of quantum key distribution with this optical scheme we implement the superconducting single photon detectors (SSPD). At the 5 MHz pulse repetition frequency and the average photon number equal to 0.4 we measured a 33 bit/s quantum key generation for a 101.7 km single mode ber quantum channel. The extremely low SSPD dark count rate allowed us to keep QBER at 1.6% level. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Orlikovsky, A. A. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | International Conference on Micro- and Nano-Electronics | ||
| Notes | Approved | no | |||
| Call Number | RPLAB @ sasha @ ozhegov2014quantum | Serial | 1048 | ||
| Permanent link to this record | |||||
| Author | Shcherbatenko, M.; Lobanov, Y.; Semenov, A.; Kovalyuk, V.; Korneev, A.; Ozhegov, R.; Kaurova, N.; Voronov, B.; Goltsman, G. | ||||
| Title | Coherent detection of weak signals with superconducting nanowire single photon detector at the telecommunication wavelength | Type | Conference Article | ||
| Year | 2017 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 10229 | Issue | Pages | 0G (1 to 12) | |
| Keywords | SSPD mixer, SNSPD, coherent detection, weak signal detection, superconducting nanostructures | ||||
| Abstract | Achievement of the ultimate sensitivity along with a high spectral resolution is one of the frequently addressed problems, as the complication of the applied and fundamental scientific tasks being explored is growing up gradually. In our work, we have investigated performance of a superconducting nanowire photon-counting detector operating in the coherent mode for detection of weak signals at the telecommunication wavelength. Quantum-noise limited sensitivity of the detector was ensured by the nature of the photon-counting detection and restricted by the quantum efficiency of the detector only. Spectral resolution given by the heterodyne technique and was defined by the linewidth and stability of the Local Oscillator (LO). Response bandwidth was found to coincide with the detector’s pulse width, which, in turn, could be controlled by the nanowire length. In addition, the system noise bandwidth was shown to be governed by the electronics/lab equipment, and the detector noise bandwidth is predicted to depend on its jitter. As have been demonstrated, a very small amount of the LO power (of the order of a few picowatts down to hundreds of femtowatts) was required for sufficient detection of the test signal, and eventual optimization could lead to further reduction of the LO power required, which would perfectly suit for the foreseen development of receiver matrices and the need for detection of ultra-low signals at a level of less-than-one-photon per second. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Spie | Place of Publication | Editor | Prochazka, I.; Sobolewski, R.; James, R.B. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Photon counting applications | ||
| Notes | Approved | no | |||
| Call Number | 10.1117/12.2267724 | Serial | 1201 | ||
| Permanent link to this record | |||||
| Author | Korneev, A.; Minaeva, O.; Divochiy, A.; Antipov, A.; Kaurova, N.; Seleznev, V.; Voronov, B.; Gol’tsman, G.; Pan, D.; Kitaygorsky, J.; Slysz, W.; Sobolewski, R. | ||||
| Title | Ultrafast and high quantum efficiency large-area superconducting single-photon detectors | Type | Conference Article | ||
| Year | 2007 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 6583 | Issue | Pages | 65830I (1 to 9) | |
| Keywords | SSPD, SNSPD, superconducting NbN films, infrared single-photon detectors | ||||
| Abstract | We present our latest generation of superconducting single-photon detectors (SSPDs) patterned from 4-nm-thick NbN films, as meander-shaped 0.5-mm-long and 100-nm-wide stripes. The SSPDs exhibit excellent performance parameters in the visible-to-near-infrared radiation wavelengths: quantum efficiency (QE) of our best devices approaches a saturation level of 30% even at 4.2 K (limited by the NbN film optical absorption) and dark counts as low as 2x10-4 Hz. The presented SSPDs were designed to maintain the QE of large-active-area devices, but, unless our earlier SSPDs, hampered by a significant kinetic inductance and a nanosecond response time, they are characterized by a low inductance and GHz counting rates. We have designed, simulated, and tested the structures consisting of several, connected in parallel, meander sections, each having a resistor connected in series. Such new, multi-element geometry led to a significant decrease of the device kinetic inductance without the decrease of its active area and QE. The presented improvement in the SSPD performance makes our detectors most attractive for high-speed quantum communications and quantum cryptography applications. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Spie | Place of Publication | Editor | Dusek, M.; Hillery, M.S.; Schleich, W.P.; Prochazka, I.; Migdall, A.L.; Pauchard, A. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1249 | |||
| Permanent link to this record | |||||
| Author | Korneev, A.; Korneeva, Y.; Florya, I.; Voronov, B.; Goltsman, G. | ||||
| Title | Spectral sensitivity of narrow strip NbN superconducting single-photon detector | Type | Conference Article | ||
| Year | 2011 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 8072 | Issue | Pages | 80720G (1 to 9) | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | Superconducting single-photon detector (SSPD) is patterned from 4-nm-thick NbN film deposited on sapphire substrate as a 100-nm-wide strip. Due to its high detection efficiency, low dark counts, and picosecond timing jitter SSPD has become a competitor to the InGaAs avalanche photodiodes at 1550 nm and longer wavelengths. Although the SSPD is operated at liquid helium temperature its efficient single-mode fibre coupling enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. In our strive to increase the detection efficiency at 1550 nm and longer wavelengths we developed and fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm. To increase the voltage response of the device we utilized cascade switching mechanism: we connected 50-nm-wide and 10-μm-long strips in parallel covering the area of 10 μmx10 μm. Absorption of a photon breaks the superconductivity in a strip leading to the bias current redistribution between other strips followed their cascade switching. As the total current of all the strips about is 1 mA by the order of magnitude the response voltage of such an SSPD is several times higher compared to the traditional meander-shaped SSPDs. In middle infrared (about 3 μm wavelength) these devices have the detection efficiency several times higher compared to the traditional SSPDs. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Fiurásek, J.; Prochazka, I. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Photon Counting Applications, Quantum Optics, and Quantum Information Transfer and Processing III | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1387 | |||
| Permanent link to this record | |||||
| Author | Goltsman, G. N. | ||||
| Title | Ultrafast nanowire superconducting single-photon detector with photon number resolving capability | Type | Conference Article | ||
| Year | 2009 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 7236 | Issue | Pages | 72360D (1 to 11) | |
| Keywords | PNR NbN SSPD, SNSPD, superconducting single-photon detectors, photon number resolving detectors, ultrathin NbN films | ||||
| Abstract | In this paper we present a review of the state-of-the-art superconducting single-photon detector (SSPD), its characterization and applications. We also present here the next step in the development of SSPD, i.e. photon-number resolving SSPD which simultaneously features GHz counting rate. We have demonstrated resolution up to 4 photons with quantum efficiency of 2.5% and 300 ps response pulse duration providing very short dead time. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Arakawa, Y.; Sasaki, M.; Sotobayashi, H. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1403 | |||
| Permanent link to this record | |||||
| Author | Smirnov, K. V.; Vachtomin, Y. B.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Korneev, A. A.; Goltsman, G. N. | ||||
| Title | Fiber coupled single photon receivers based on superconducting detectors for quantum communications and quantum cryptography | Type | Conference Article | ||
| Year | 2008 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 7138 | Issue | Pages | 713827 (1 to 6) | |
| Keywords | SSPD, SNSPD, superconducting single photon detector, ultra-thin superconducting films, optical fiber coupling, ready to use receiver | ||||
| Abstract | At present superconducting detectors become increasingly attractive for various practical applications. In this paper we present results on the depelopment of fiber coupled receiver systems for the registration of IR single photons, optimized for telecommunication and quantum-cryptography. These receiver systems were developed on the basis of superconducting single photon detectors (SSPD) of VIS and IR wavelength ranges. The core of the SSPD is a narrow ( 100 nm) and long ( 0,5 mm) strip in the form of a meander which is patterned from a 4-nm-thick NbN film (TC=10-11 K, jC= 5-7•106 A/cm2); the sensitive area dimensions are 10×10 μm2. The main problem to be solved while the receiver system development was optical coupling of a single-mode fiber (9 microns in diameter) with the SSPD sensitive area. Characteristics of the developed system at the optical input are as follows: quantum efficiency >10 % (at 1.3 μm), >4 % (at 1.55 μm); dark counts rate ≤1 s-1; duration of voltage pulse ≤5 ns; jitter ≤40 ps. The receiver systems have either one or two identical channels (for the case of carrying out correlation measurements) and are made as an insert in a helium storage Dewar. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Spie | Place of Publication | Editor | Tománek, P.; Senderáková, D.; Hrabovský, M. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1405 | |||
| Permanent link to this record | |||||
| Author | Okunev, O.; Chulkova, G.; Milostnaya, I.; Antipov, A.; Smirnov, K.; Morozov, D.; Korneev, A.; Voronov, B.; Gol’tsman, G.; Slysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Górska, M.; Pearlman, A.; Cross, A.; Kitaygorsky, J.; Sobolewski, R. | ||||
| Title | Registration of infrared single photons by a two-channel receiver based on fiber-coupled superconducting single-photon detectors | Type | Conference Article | ||
| Year | 2008 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 7009 | Issue | Pages | 70090V (1 to 8) | |
| Keywords | SSPD, SNSPD, single-photon detectors, superconductors, superconducting nanost | ||||
| Abstract | Single-photon detectors (SPDs) are the foundation of all quantum communications (QC) protocols. Among different classes of SPDs currently studied, NbN superconducting SPDs (SSPDs) are established as the best devices for ultrafast counting of single photons in the infrared (IR) wavelength range. The SSPDs are nanostructured, 100 μm2 in total area, superconducting meanders, patterned by electron lithography in ultra-thin NbN films. Their operation has been explained within a phenomenological hot-electron photoresponse model. We present the design and performance of a novel, two-channel SPD receiver, based on two fiber-coupled NbN SSPDs. The receivers have been developed for fiber-based QC systems, operational at 1.3 μm and 1.55 μm telecommunication wavelengths. They operate in the temperature range from 4.2 K to 2 K, in which the NbN SSPDs exhibit their best performance. The receiver unit has been designed as a cryostat insert, placed inside a standard liquid-heliumstorage dewar. The input of the receiver consists of a pair of single-mode optical fibers, equipped with the standard FC connectors and kept at room temperature. Coupling between the SSPD and the fiber is achieved using a specially designed, precise micromechanical holder that places the fiber directly on top of the SSPD nanostructure. Our receivers achieve the quantum efficiency of up to 7% for near-IR photons, with the coupling efficiency of about 30%. The response time was measured to be < 1.5 ns and it was limited by our read-out electronics. The jitter of fiber-coupled SSPDs is < 35 ps and their dark-count rate is below 1s-1. The presented performance parameters show that our single-photon receivers are fully applicable for quantum correlation-type QC systems, including practical quantum cryptography. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Sukhoivanov, I.A.; Svich, V.A.; Shmaliy, Y.S. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1413 | |||
| Permanent link to this record | |||||
| Author | Slysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Gorska, M.; Rieger, E.; Dorenbos, P.; Zwiller, V.; Milostnaya, I.; Minaeva, O.; Antipov, A.; Okunev, O.; Korneev, A.; Smirnov, K.; Voronov, B.; Kaurova, N.; Gol’tsman, G.N.; Kitaygorsky, J.; Pan, D.; Pearlman, A.; Cross, A.; Komissarov, I.; Sobolewski, R. | ||||
| Title | Fiber-coupled NbN superconducting single-photon detectors for quantum correlation measurements | Type | Conference Article | ||
| Year | 2007 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 6583 | Issue | Pages | 65830J (1 to 11) | |
| Keywords | NbN SSPD, SNSPD, superconducting single-photon detectors, single-photon detectors, fiber-coupled optical detectors, quantum correlations, superconducting devices | ||||
| Abstract | We have fabricated fiber-coupled superconducting single-photon detectors (SSPDs), designed for quantum-correlationtype experiments. The SSPDs are nanostructured ( 100-nm wide and 4-nm thick) NbN superconducting meandering stripes, operated in the 2 to 4.2 K temperature range, and known for ultrafast and efficient detection of visible to nearinfrared photons with almost negligible dark counts. Our latest devices are pigtailed structures with coupling between the SSPD structure and a single-mode optical fiber achieved using a micromechanical photoresist ring placed directly over the meander. The above arrangement withstands repetitive thermal cycling between liquid helium and room temperature, and we can reach the coupling efficiency of up to 33%. The system quantum efficiency, measured as the ratio of the photons counted by SSPD to the total number of photons coupled into the fiber, in our early devices was found to be around 0.3 % and 1% for 1.55 &mgr;m and 0.9 &mgr;m photon wavelengths, respectively. The photon counting rate exceeded 250 MHz. The receiver with two SSPDs, each individually biased, was placed inside a transport, 60-liter liquid helium Dewar, assuring uninterrupted operation for over 2 months. Since the receiver’s optical and electrical connections are at room temperature, the set-up is suitable for any applications, where single-photon counting capability and fast count rates are desired. In our case, it was implemented for photon correlation experiments. The receiver response time, measured as a second-order photon cross-correlation function, was found to be below 400 ps, with timing jitter of less than 40 ps. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Spie | Place of Publication | Editor | Dusek, M.; Hillery, M.S.; Schleich, W.P.; Prochazka, I.; Migdall, A.L.; Pauchard, A. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Photon Counting Applications, Quantum Optics, and Quantum Cryptography | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1431 | |||
| Permanent link to this record | |||||
| Author | Milostnaya, I.; Korneev, A.; Minaeva, O.; Rubtsova, I.; Slepneva, S.; Seleznev, V.; Chulkova, G.; Okunev, O.; Smirnov, K.; Voronov, B.; Gol’tsman, G.; Slysz, W.; Kitaygorsky, J.; Cross, A.; Pearlman, A.; Sobolewski, R. | ||||
| Title | Superconducting nanostructured detectors capable of single photon counting of mid-infrared optical radiation | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 5957 | Issue | Pages | 59570A (1 to 9) | |
| Keywords | SSPD, SNSPD, single-photon detectors, superconductors, superconducting | ||||
| Abstract | We report on our progress in research and development of ultrafast superconducting single-photon detectors (SSPDs) based on ultrathin NbN nanostructures. Our SSPDs were made of the 4-nm-thick NbN films with Tc 11 K, patterned as meander-shaped, 100-nm-wide strips, and covering an area of 10×10 μm2. The detectors exploit a combined detection mechanism, where upon a single-photon absorption, a hotspot of excited electrons and redistribution of the biasing supercurrent, jointly produce a picosecond voltage transient signal across the superconducting nanostripe. The SSPDs are typically operated at 4.2 K, but their sensitivity in the infrared radiation range can be significantly improved by lowering the operating temperature from 4.2 K to 2 K. When operated at 2 K, the SSPD quantum efficiency (QE) for visible light photons reaches 30-40%, which is the saturation value limited by the optical absorption of our 4-nm-thick NbN film. With the wavelength increase of the incident photons,the QE of SSPDs decreases significantly, but even at the wavelength of 6 μm, the detector is able to count single photons and exhibits QE of about 10-2 %. The dark (false) count rate at 2 K is as low as 2x10-4 s,-1 which makes our detector essentially a background-limited sensor. The very low dark-count rate results in a noise equivalent power (NEP) below 10-18 WHz-1/2 for the mid-infrared range (6 μm). Further improvement of the SSPD performance in the mid-infrared range can be obtained by substituting NbN for another, lower-Tc materials with a narrow superconducting gap and low quasiparticles diffusivity. The use of such superconductors should shift the cutoff wavelength below 10 μm. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Rogalski, A.; Dereniak, E.L.; Sizov, F.F. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Infrared Photoelectronics | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1458 | |||
| Permanent link to this record | |||||
| Author | Slysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Górska, M.; Latta, C.; Zwiller, V.; Pearlman, A.; Cross, A.; Korneev, A.; Kouminov, P.; Smirnov, K.; Voronov, B.; Gol’tsman, G.; Verevkin, A.; Currie, M.; Sobolewski, R. | ||||
| Title | Fiber-coupled quantum-communications receiver based on two NbN superconducting single-photon detectors | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 5957 | Issue | Pages | 59571K (1 to 10) | |
| Keywords | SSPD, SNSPD, single-photon detectors, quantum communication, quantum cryptography, superconductors, infrared optical detectors | ||||
| Abstract | We present the design and performance of a novel, two-channel single-photon receiver, based on two fiber-coupled NbN superconducting single-photon detectors (SSPDs). The SSPDs are nanostructured superconducting meanders covering an area of 100 μm2 and are known for ultrafast and efficient counting of single, visible-to-infrared photons. Their operation has been explained within a phenomenological hot-electron photoresponse model. Our receiver is intended for fiber-based quantum cryptography and communication systems, operational at near-infrared (NIR) telecommunication wavelengths, λ = 1.3 μm and λ = 1.55 μm. Coupling between the NbN detector and a single-mode optical fiber was achieved using a specially designed, micromechanical photoresist ring, positioned directly over the SSPD active area. The positioning accuracy of the ring was below 1 μm. The receiver with SSPDs was placed (immersed) in a standard liquid-helium transport Dewar and kept without interruption for over two months at 4.2 K. At the same time, the optical fiber inputs and electrical outputs were kept at room temperature. Our best system reached a system quantum efficiency of up to 0.3 % in the NIR radiation range, with the detector coupling efficiency of about 30 %. The response time was measured to be about 250 ps and was limited by our read-out electronics. The measured jitter was close to 35 ps. The presented performance parameters show that our NIR single photon detectors are suitable for practical quantum cryptography and for applications in quantum-correlation experiments. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Rogalski, A.; Dereniak, E.L.; Sizov, F.F. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Infrared Photoelectronics | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1459 | |||
| Permanent link to this record | |||||
| Author | Goltsman, G.; Korneev, A.; Minaeva, O.; Rubtsova, I.; Chulkova, G.; Milostnaya, I.; Smirnov, K.; Voronov, B.; Lipatov, A. P.; Pearlman, A. J.; Cross, A.; Slysz, W.; Verevkin, A. A.; Sobolewski, R. | ||||
| Title | Advanced nanostructured optical NbN single-photon detector operated at 2.0 K | Type | Conference Article | ||
| Year | 2005 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 5732 | Issue | Pages | 520-529 | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We present our studies on quantum efficiency (QE), dark counts, and noise equivalent power (NEP) of the latest generation of nanostructured NbN superconducting single-photon detectors (SSPDs) operated at 2.0 K. Our SSPDs are based on 4 nm-thick NbN films, patterned by electron beam lithography as highly-uniform 100÷120-nm-wide meander-shaped stripes, covering the total area of 10x10 μm2 with the meander filling factor of 0.7. Advances in the fabrication process and low-temperature operation lead to QE as high as 30-40% for visible-light photons (0.56 μm wavelength)-the saturation value, limited by optical absorption of the NbN film. For 1.55 μm photons, QE was 20% and decreased exponentially with the wavelength reaching 0.02% at the 5-μm wavelength. Being operated at 2.0-K temperature the SSPDs revealed an exponential decrease of the dark count rate, what along with the high QE, resulted in the NEP as low as 5x10-21 W/Hz-1/2, the lowest value ever reported for near-infrared optical detectors. The SSPD counting rate was measured to be above 1 GHz with the pulse-to-pulse jitter below 20 ps. Our nanostructured NbN SSPDs operated at 2.0 K significantly outperform their semiconducting counterparts and find practical applications ranging from noninvasive testing of CMOS VLSI integrated circuits to ultrafast quantum communications and quantum cryptography. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Spie | Place of Publication | Editor | Razeghi, M.; Brown, G.J. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Quantum Sensing and Nanophotonic Devices II | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1478 | |||
| Permanent link to this record | |||||
| Author | Sobolewski, R.; Zhang, J.; Slysz, W.; Pearlman, A.; Verevkin, A.; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smirnov, K.; Kouminov, P.; Voronov, B.; Kaurova, N.; Drakinsky, V.; Goltsman, G. N. | ||||
| Title | Ultrafast superconducting single-photon optical detectors | Type | Conference Article | ||
| Year | 2003 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 5123 | Issue | Pages | 1-11 | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We present a new class of single-photon devices for counting of both visible and infrared photons. Our superconducting single-photon detectors (SSPDs) are characterized by the intrinsic quantum efficiency (QE) reaching up to 100%, above 10 GHz counting rate, and negligible dark counts. The detection mechanism is based on the photon-induced hotspot formation and subsequent appearance of a transient resistive barrier across an ultrathin and submicron-wide superconducting stripe. The devices are fabricated from 3.5-nm-thick NbN films and operate at 4.2 K, well below the NbN superconducting transition temperature. Various continuous and pulsed laser sources in the wavelength range from 0.4 μm up to >3 μm were implemented in our experiments, enabling us to determine the detector QE in the photon-counting mode, response time, and jitter. For our best 3.5-nm-thick, 10×10 μm2-area devices, QE was found to reach almost 100% for any wavelength shorter than about 800 nm. For longer-wavelength (infrared) radiation, QE decreased exponentially with the photon wavelength increase. Time-resolved measurements of our SSPDs showed that the system-limited detector response pulse width was below 150 ps. The system jitter was measured to be 35 ps. In terms of the counting rate, jitter, and dark counts, the NbN SSPDs significantly outperform their semiconductor counterparts. Already identifeid and implemented applications of our devices range from noninvasive testing of semiconductor VLSI circuits to free-space quantum communications and quantum cryptography. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | SPIE | Place of Publication | Editor | Spigulis, J.; Teteris, J.; Ozolinsh, M.; Lusis, A. | |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Advanced Optical Devices, Technologies, and Medical Applications | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1513 | |||
| Permanent link to this record | |||||
| Author | Verevkin, A. A.; Pearlman, A.; Slysz, W.; Zhang, J.; Sobolewski, R.; Chulkova, G.; Okunev, O.; Kouminov, P.; Drakinskij, V.; Smirnov, K.; Kaurova, N.; Voronov, B.; Gol’tsman, G.; Currie, M. | ||||
| Title | Ultrafast superconducting single-photon detectors for infrared wavelength quantum communications | Type | Conference Article | ||
| Year | 2003 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 5105 | Issue | Pages | 160-170 | |
| Keywords | NbN SSPD, SNSPD, applications, single-photon detector, quantum cryptography, quantum communications, superconducting devices | ||||
| Abstract | We have developed a new class of superconducting single-photon detectors (SSPDs) for ultrafast counting of infrared (IR) photons for secure quantum communications. The devices are operated on the quantum detection mechanism, based on the photon-induced hotspot formation and subsequent appearance of a transient resistive barrier across an ultrathin and submicron-wide superconducting stripe. The detectors are fabricated from 3.5-nm-thick NbN films and they operate at 4.2 K inside a closed-cycle refrigerator or liquid helium cryostat. Various continuous and pulsed laser sources have been used in our experiments, enabling us to determine the detector experimental quantum efficiency (QE) in the photon-counting mode, response time, time jitter, and dark counts. Our 3.5-nm-thick SSPDs reached QE above 15% for visible light photons and 5% at 1.3 – 1.5 μm infrared range. The measured real-time counting rate was above 2 GHz and was limited by the read-out electronics (intrinsic response time is <30 ps). The measured jitter was <18 ps, and the dark counting rate was <0.01 per second. The measured noise equivalent power (NEP) is 2 x 10-18 W/Hz1/2 at λ = 1.3 μm. In near-infrared range, in terms of the counting rate, jitter, dark counts, and overall sensitivity, the NbN SSPDs significantly outperform their semiconductor counterparts. An ultrafast quantum cryptography communication technology based on SSPDs is proposed and discussed. | ||||
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| Publisher | SPIE | Place of Publication | Editor | Donkor, E.; Pirich, A.R.; Brandt, H.E. | |
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| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Quantum Information and Computation | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1514 | |||
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| Author | Verevkin, A. A.; Zhang, J.; Slysz, W.; Sobolewski, R.; Lipatov, A. P.; Okunev, O.; Chulkova, G.; Korneev, A.; Gol’tsman, G. N. | ||||
| Title | Superconducting single-photon detectors for GHz-rate free-space quantum communications | Type | Conference Article | ||
| Year | 2002 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 4821 | Issue | Pages | 447-454 | |
| Keywords | NbN SSPD, SNSPD, single-photon detector, thin-film superconductivity, quantum cryptography, ultrafast communications | ||||
| Abstract | We report our studies on the performance of new NbN ultrathin-film superconducting single-photon detectors (SSPDs). Our SSPDs exhibit experimentally measured quantum efficiencies from 5% at wavelength λ = 1550 nm up to 10% at λ = 405 nm, with exponential, activation-energy-type spectral sensitivity dependence in the 0.4-μm – 3-μm wavelength range. Using a variable optical delay setup, we have shown that our NbN SSPDs can resolve optical photons with a counting rate up to 10 GHz, presently limited by the read-out electronics. The measured device jitter was below 35 ps under optimum biasing conditions. The extremely high photon counting rate, together with relatively high (especially for λ > 1 μm) quantum efficiency, low jitter, and very low dark counts, make NbN SSPDs very promising for free-space communications and quantum cryptography. | ||||
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| Publisher | SPIE | Place of Publication | Editor | Ricklin, J.C.; Voelz, D.G. | |
| Language | Summary Language | Original Title | |||
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| Area | Expedition | Conference | Free-Space Laser Communication and Laser Imaging II | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1523 | |||
| Permanent link to this record | |||||
| Author | Zhang, J.; Verevkin, A.; Slysz, W.; Chulkova, G.; Korneev, A.; Lipatov, A.; Okunev, O.; Gol’tsman, G. N.; Sobolewski, Roman | ||||
| Title | Time-resolved characterization of NbN superconducting single-photon optical detectors | Type | Conference Article | ||
| Year | 2017 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 10313 | Issue | Pages | 103130F (1 to 3) | |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | NbN superconducting single-photon detectors (SSPDs) are very promising devices for their picosecond response time, high intrinsic quantum efficiency, and high signal-to-noise ratio within the radiation wavelength from ultraviolet to near infrared (0.4 gm to 3 gm) [1-3]. The single photon counting property of NbN SSPDs have been investigated thoroughly and a model of hotspot formation has been introduced to explain the physics of the photon- counting mechanism [4-6]. At high incident flux density (many-photon pulses), there are, of course, a large number of hotspots simultaneously formed in the superconducting stripe. If these hotspots overlap with each other across the width w of the stripe, a resistive barrier is formed instantly and a voltage signal can be generated. We assume here that the stripe thickness d is less than the electron diffusion length, so the hotspot region can be considered uniform. On the other hand, when the photon flux is so low that on average only one hotspot is formed across w at a given time, the formation of the resistive barrier will be realized only when the supercurrent at sidewalks surpasses the critical current (jr) of the superconducting stripe [1]. In the latter situation, the formation of the resistive barrier is associated with the phase-slip center (PSC) development. The effect of PSCs on the suppression of superconductivity in nanowires has been discussed very recently [8, 9] and is the subject of great interest. | ||||
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| Publisher | SPIE | Place of Publication | Editor | Armitage, J. C. | |
| Language | Summary Language | Original Title | |||
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| Area | Expedition | Conference | Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging, 2002, Ottawa, Ontario, Canada | ||
| Notes | Downloaded from http://www2.ece.rochester.edu/projects/ufqp/PDF/2002/213NbNTimeOPTO_b.pdf This artcle was published in 2017 with only first author indicated (Zhang, J.). There were 8 more authors! | Approved | no | ||
| Call Number | Serial | 1750 | |||
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| Author | Moshkova, M. A.; Morozov, P. V.; Antipov, A. V.; Vakhtomin, Y. B.; Smirnov, K. V. | ||||
| Title | High-efficiency multi-element superconducting single-photon detector | Type | Conference Article | ||
| Year | 2021 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 11771 | Issue | Pages | 2-8 | |
| Keywords | PNR SSPD, large active area, detection efficiency | ||||
| Abstract | We present the result of the creation and investigation of the multi-element superconducting single photon detectors, which can recognize the number of photons (up to six) in a short pulse of the radiation at telecommunication wavelengths range. The best receivers coupled with single-mode fiber have the system quantum efficiency of ⁓85%. The receivers have a 100 ps time resolution and a few nanoseconds dead time that allows them to operate at megahertz counting rate. Implementation of the multi-element architecture for creation of the superconducting single photon detectors with increased sensitive area allows to create the high efficiency receivers coupled with multi-mode fibers and with preserving of the all advantages of superconducting photon counters. | ||||
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| Publisher | SPIE | Place of Publication | Editor | Prochazka, I.; Štefaňák, M.; Sobolewski, R.; Gábris, A. | |
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| Area | Expedition | Conference | Quantum Optics and Photon Counting | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1795 | |||
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| Author | Schroeder, E.; Mauskopf, P.; Pilyavsky, G.; Sinclair, A.; Smith, N.; Bryan, S.; Mani, H.; Morozov, D.; Berggren, K.; Zhu, D.; Smirnov, K.; Vakhtomin, Y. | ||||
| Title | On the measurement of intensity correlations from laboratory and astronomical sources with SPADs and SNSPDs | Type | Conference Article | ||
| Year | 2016 | Publication | Proc. SPIE | Abbreviated Journal |
Proc. SPIE |
| Volume | 9907 | Issue | Pages | 99070P (1 to 13) | |
| Keywords | SPAD, NbN SSPD applications, SNSPD | ||||
| Abstract | We describe the performance of detector modules containing silicon single photon avalanche photodiodes (SPADs) and superconducting nanowire single photon detectors (SNSPDs) to be used for intensity interferometry. The SPADs are mounted in fiber-coupled and free-space coupled packages. The SNSPDs are mounted in a small liquid helium cryostat coupled to single mode fiber optic cables which pass through a hermetic feed-through. The detectors are read out with microwave amplifiers and FPGA-based coincidence electronics. We present progress on measurements of intensity correlations from incoherent sources including gas-discharge lamps and stars with these detectors. From the measured laboratory performance of the correlation system, we estimate the sensitivity to intensity correlations from stars using commercial telescopes and larger existing research telescopes. | ||||
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| Publisher | SPIE | Place of Publication | Editor | Malbet, F.; Creech-Eakman, M.J.; Tuthill, P.G. | |
| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Medium | |||
| Area | Expedition | Conference | Optical and Infrared Interferometry and Imaging V | ||
| Notes | Approved | no | |||
| Call Number | Serial | 1809 | |||
| Permanent link to this record | |||||
| Author | Verevkin, A.; Zhang, J.; Pearlman, A.; Slysz, W.; Sobolewski, Roman; Korneev, A.; Kouminov, P.; Okunev, O.; Chulkova, G.; Gol'tsman, G. | ||||
| Title | Ultimate sensitivity of superconducting single-photon detectors in the visible to infrared range | Type | Miscellaneous | ||
| Year | 2004 | Publication | ResearchGate | Abbreviated Journal |
ResearchGate |
| Volume | Issue | Pages | |||
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We present our quantum efficiency (QE) and noise equivalent power (NEP) measurements of the meandertype ultrathin NbN superconducting single-photon detector in the visible to infrared radiation range. The nanostructured devices with 3.5-nm film thickness demonstrate QE up to~ 10% at 1.3–1.55 µm wavelength, and up to 20% in the entire visible range. The detectors are sensitive to infrared radiation with the wavelengths down to~ 10 µm. NEP of about 2× 10-18 W/Hz1/2 was obtained at 1.3 µm wavelength. Such high sensitivity together with GHz-range counting speed, make NbN photon counters very promising for efficient, ultrafast quantum communications and another applications. We discuss the origin of dark counts in our devices and their ultimate sensitivity in terms of the resistive fluctuations in our superconducting nanostructured devices. | ||||
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| Notes | Not attributed to any publisher! File name: PR9VervekinSfin_f.doc; Author: JAOLEARY; Last modification date: 2004-02-26 | Approved | no | ||
| Call Number | Serial | 1751 | |||
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| Author | Shcheslavskiy, V.; Morozov, P.; Divochiy, A.; Vakhtomin, Y.; Smirnov, K.; Becker, W. | ||||
| Title | Erratum: “Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector” [Rev. Sci. Instrum. 87, 053117 (2016)] | Type | Miscellaneous | ||
| Year | 2016 | Publication | Rev. Sci. Instrum. | Abbreviated Journal |
Rev. Sci. Instrum. |
| Volume | 87 | Issue | 6 | Pages | 069901 |
| Keywords | SSPD, SNSPD, TCSPC, jitter | ||||
| Abstract | In the original paper1the Ref. 10 should be M. Sanzaro, N. Calandri, A. Ruggeri, C. Scarcella, G. Boso, M. Buttafava, and A. Tosi, Proc. SPIE9370, 93701T (2015). | ||||
| Address | Becker & Hickl GmbH, Nahmitzer Damm 30, Berlin 12277, Germany | ||||
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| Language | Summary Language | Original Title | |||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0034-6748 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:27370512 | Approved | no | ||
| Call Number | Serial | 1810 | |||
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| Author | Korneev, A. A.; Divochiy, A. V.; Vakhtomin, Yu. B.; Korneeva, Yu. P.; Larionov, P. A.; Manova, N. N.; Florya, I. N.; Trifonov, A. V.; Voronov, B. M.; Smirnov, K. V.; Semenov, A. V.; Chulkova, G. M.; Goltsman, G. N. | ||||
| Title | IR single-photon receiver based on ultrathin NbN superconducting film | Type | Journal Article | ||
| Year | 2013 | Publication | Rus. J. Radio Electron. | Abbreviated Journal |
Rus. J. Radio Electron. |
| Volume | Issue | 5 | Pages | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | We present our recent results in research and development of superconducting single-photon detector (SSPD). We achieved the following performance improvement: first, we developed and characterized SSPD integrated in optical cavity and enabling its illumination from the face side, not through the substrate, second, we improved the quantum efficiency of the SSPD at around 3 μm wavelength by reduction of the strip width to 40 nm, and, finally, we improved the detection efficiency of the SSPD-based single-photon receiver system up to 20% at 1550 nm and extended its wavelength range beyond 1800 nm by the usage of the fluoride ZBLAN fibres. | ||||
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| Language | Russian | Summary Language | Original Title | ||
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| Notes | 8 pages | Approved | no | ||
| Call Number | RPLAB @ sasha @ korneevir | Serial | 1043 | ||
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| Author | Smirnov, K.; Vachtomin, Y.; Divochiy, A.; Antipov, A.; Goltsman, G. | ||||
| Title | The limitation of noise equivalent power by background radiation for infrared superconducting single photon detectors coupled to standard single mode optical fibers | Type | Journal Article | ||
| Year | 2015 | Publication | Rus. J. Radio Electron. | Abbreviated Journal |
Rus. J. Radio Electron. |
| Volume | Issue | 5 | Pages | ||
| Keywords | NbN SSPD | ||||
| Abstract | We investigated the minimum level of the dark count rates and noise equivalent power of superconducting single photon detectors coupled to standard single mode optical fibers. We found that background radiation limits the minimum level of the dark count rates. We also proposed the effective method for reducing background radiation out of the required spectral range of the detector. Measured noise equivalent power of detector reaches 8.9×10-19 W×Hz1/2 at a wavelength of 1.55 μm and quantum efficiency 35%. | ||||
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| Notes | 14 pages | Approved | no | ||
| Call Number | Serial | 1813 | |||
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| Author | Korneeva, Yu. P.; Trifonov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V. | ||||
| Title | Design of resonator for superconducting single-photon detector | Type | Journal Article | ||
| Year | 2011 | Publication | Rus. J. Radio Electron. | Abbreviated Journal |
Rus. J. Radio Electron. |
| Volume | Issue | 12 | Pages | ||
| Keywords | SSPD optical resonator, SNSPD | ||||
| Abstract | A resonator for superconducting single-photon detector is designed. Near 60% coupling with a radiation propagating from a dielectric substrate of optical fiber is demonstrated to be achieved for typical values of the detector’s film sheet resistance. | ||||
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| Language | Russian | Summary Language | Original Title | ||
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| Notes | 6 pages | Approved | no | ||
| Call Number | Serial | 1827 | |||
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| Author | Kovalyuk, V.; Ferrari, S.; Kahl, O.; Semenov, A.; Shcherbatenko, M.; Lobanov, Y.; Ozhegov, R.; Korneev, A.; Kaurova, N.; Voronov, B.; Pernice, W.; Gol'tsman, G. | ||||
| Title | On-chip coherent detection with quantum limited sensitivity | Type | Journal Article | ||
| Year | 2017 | Publication | Sci Rep | Abbreviated Journal |
Sci Rep |
| Volume | 7 | Issue | 1 | Pages | 4812 |
| Keywords | waveguide, SSPD, SNSPD | ||||
| Abstract | While single photon detectors provide superior intensity sensitivity, spectral resolution is usually lost after the detection event. Yet for applications in low signal infrared spectroscopy recovering information about the photon's frequency contributions is essential. Here we use highly efficient waveguide integrated superconducting single-photon detectors for on-chip coherent detection. In a single nanophotonic device, we demonstrate both single-photon counting with up to 86% on-chip detection efficiency, as well as heterodyne coherent detection with spectral resolution f/f exceeding 10(11). By mixing a local oscillator with the single photon signal field, we observe frequency modulation at the intermediate frequency with ultra-low local oscillator power in the femto-Watt range. By optimizing the nanowire geometry and the working parameters of the detection scheme, we reach quantum-limited sensitivity. Our approach enables to realize matrix integrated heterodyne nanophotonic devices in the C-band wavelength range, for classical and quantum optics applications where single-photon counting as well as high spectral resolution are required simultaneously. | ||||
| Address | National Research University Higher School of Economics, Moscow, 101000, Russia. ggoltsman@hse.ru | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | PMID:28684752; PMCID:PMC5500578 | Approved | no | ||
| Call Number | RPLAB @ kovalyuk @ | Serial | 1129 | ||
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| Author | Kahl, O.; Ferrari, S.; Kovalyuk, V.; Goltsman, G. N.; Korneev, A.; Pernice, W. H. P. | ||||
| Title | Waveguide integrated superconducting single-photon detectors with high internal quantum efficiency at telecom wavelengths | Type | Journal Article | ||
| Year | 2015 | Publication | Sci. Rep. | Abbreviated Journal |
Sci. Rep. |
| Volume | 5 | Issue | Pages | 10941 (1 to 11) | |
| Keywords | optical waveguides; waveguide integrated SSPD; waveguide SSPD; nanophotonics | ||||
| Abstract | Superconducting nanowire single-photon detectors (SNSPDs) provide high efficiency for detecting individual photons while keeping dark counts and timing jitter minimal. Besides superior detection performance over a broad optical bandwidth, compatibility with an integrated optical platform is a crucial requirement for applications in emerging quantum photonic technologies. Here we present efficiencies close to unity at 1550nm wavelength. This allows for the SNSPDs to be operated at bias currents far below the critical current where unwanted dark count events reach milli-Hz levels while on-chip detection efficiencies above 70% are maintained. The measured dark count rates correspond to noiseequivalent powers in the 10–19W/Hz–1/2 range and the timing jitter is as low as 35ps. Our detectors are fully scalable and interface directly with waveguide-based optical platforms. | ||||
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| Notes | PMID:26061283; PMCID:PMC4462017 | Approved | no | ||
| Call Number | RPLAB @ kovalyuk @ | Serial | 946 | ||
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| Author | Murphy, A.; Semenov, A.; Korneev, A.; Korneeva, Y.; Gol'tsman, G.; Bezryadin, A. | ||||
| Title | Three temperature regimes in superconducting photon detectors: quantum, thermal and multiple phase-slips as generators of dark counts | Type | Journal Article | ||
| Year | 2015 | Publication | Sci. Rep. | Abbreviated Journal |
Sci. Rep. |
| Volume | 5 | Issue | Pages | 10174 (1 to 10) | |
| Keywords | SPD, SSPD, SNSPD | ||||
| Abstract | We perform measurements of the switching current distributions of three w approximately 120 nm wide, 4 nm thick NbN superconducting strips which are used for single-photon detectors. These strips are much wider than the diameter of the vortex cores, so they are classified as quasi-two-dimensional (quasi-2D). We discover evidence of macroscopic quantum tunneling by observing the saturation of the standard deviation of the switching distributions at temperatures around 2 K. We analyze our results using the Kurkijarvi-Garg model and find that the escape temperature also saturates at low temperatures, confirming that at sufficiently low temperatures, macroscopic quantum tunneling is possible in quasi-2D strips and can contribute to dark counts observed in single photon detectors. At the highest temperatures the system enters a multiple phase-slip regime. In this range single phase-slips are unable to produce dark counts and the fluctuations in the switching current are reduced. | ||||
| Address | Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 2045-2322 | ISBN | Medium | ||
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| Notes | PMID:25988591; PMCID:PMC4437302 | Approved | no | ||
| Call Number | Serial | 1344 | |||
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| Author | Korneev, A.; Divochiy, A.; Tarkhov, M.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Okunev, O.; Chulkova, G.; Milostnaya, I.; Smirnov, K.; Gol’tsman, G. | ||||
| Title | Superconducting NbN-nanowire single-photon detectors capable of photon number resolving | Type | Conference Article | ||
| Year | 2008 | Publication | Supercond. News Forum | Abbreviated Journal |
Supercond. News Forum |
| Volume | Issue | Pages | |||
| Keywords | PNR SSPD, SNSPD | ||||
| Abstract | We present our latest generation of ultra-fast superconducting NbN single-photon detectors (SSPD) capable of photon-number resolving (PNR). The novel SSPDs combine 10 μm x 10 μm active area with low kinetic inductance and PNR capability. That resulted in significantly reduced photoresponse pulse duration, allowing for GHz counting rates. The detector’s response magnitude is directly proportional to the number of incident photons, which makes this feature easy to use. We present experimental data on the performance of the PNR SSPDs. These detectors are perfectly suited for fibreless free-space telecommunications, as well as for ultra-fast quantum cryptography and quantum computing. | ||||
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| Notes | Reference No. ST34, paper # 012307, eventually not pulished (skipped) at https://iopscience.iop.org/issue/0953-2048/21/1 | Approved | no | ||
| Call Number | RPLAB @ sasha @ korneevsuperconducting | Serial | 1046 | ||
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| Author | Semenov, Alexei D; Gol'tsman, Gregory N; Sobolewski, Roman | ||||
| Title | Hot-electron effect in superconductors and its applications for radiation sensors | Type | Journal Article | ||
| Year | 2002 | Publication | Superconductor Science and Technology | Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume | 15 | Issue | 4 | Pages | R1-R16 |
| Keywords | HEB, SSPD | ||||
| Abstract | The paper reviews the main aspects of nonequilibrium hot-electron phenomena in superconductors and various theoretical models developed to describe the hot-electron effect. We discuss implementation of the hot-electron avalanche mechanism in superconducting radiation sensors and present the most successful practical devices, such as terahertz mixers and direct intensity detectors, for far-infrared radiation. Our presentation also includes the novel approach to hot-electron quantum detection implemented in superconducting x-ray to optical photon counters. | ||||
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| ISSN | 0953-2048 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 416 | |||
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| Author | Korneeva, Y. P.; Manova, N. N.; Dryazgov, M. A.; Simonov, N. O.; Zolotov, P. I.; Korneev, A. A. | ||||
| Title | Influence of sheet resistance and strip width on the detection efficiency saturation in micron-wide superconducting strips and large-area meanders | Type | Journal Article | ||
| Year | 2021 | Publication | Supercond. Sci. Technol. | Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume | 34 | Issue | 8 | Pages | 084001 |
| Keywords | NbN SSPD, SMSPD | ||||
| Abstract | We report our study of detection efficiency (DE) saturation in wavelength range 400 – 1550 nm for the NbN Superconducting Microstrip Single-Photon Detectors (SMSPD) featuring the strip width up to 3 μm. We observe an expected decrease of the $DE$ saturation plateau with the increase of photon wavelength and decrease of film sheet resistance. At 1.7 K temperature DE saturation can be clearly observed at 1550 nm wavelength in strip with the width up to 2 μm when sheet resistance of the film is above 630Ω/sq. In such strips the length of the saturation plateau almost does not depend on the strip width. We used these films to make meander-shaped detectors with the light sensitive area from 20×20μm2 to a circle 50 μm in diameter. In the latter case, the detector with the strip width of 0.49 μm demonstrates saturation of DE up to 1064 nm wavelength. Although DE at 1310 and 1550 nm is not saturated, it is as high as 60%. The response time is limited by the kinetic inductance and equals to 20 ns(by 1/e decay), timing jitter is 44 ps. When coupled to multi-mode fibre large-area meanders demonstrate significantly higher dark count rate which we attribute to thermal background photons, thus advanced filtering technique would be required for practical applications. | ||||
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| ISSN | 0953-2048 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1793 | |||
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| Author | Korneeva, Y. P.; Mikhailov, M. Y.; Pershin, Y. P.; Manova, N. N.; Divochiy, A. V.; Vakhtomin, Y. B.; Korneev, A. A.; Smirnov, K. V.; Sivakov, A. G.; Devizenko, A. Y.; Goltsman, G. N. | ||||
| Title | Superconducting single-photon detector made of MoSi film | Type | Journal Article | ||
| Year | 2014 | Publication | Supercond. Sci. Technol. | Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume | 27 | Issue | 9 | Pages | 095012 |
| Keywords | SSPD, SNSPD | ||||
| Abstract | We fabricated and characterized nanowire superconducting single-photon detectors made of 4 nm thick amorphous Mox Si1−x films. At 1.7 K the best devices exhibit a detection efficiency (DE) up to 18% at 1.2 $\mu {\rm m}$ wavelength of unpolarized light, a characteristic response time of about 6 ns and timing jitter of 120 ps. The DE was studied in wavelength range from 650 nm to 2500 nm. At wavelengths below 1200 nm these detectors reach their maximum DE limited by photon absorption in the thin MoSi film. | ||||
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| Publisher | IOP Publishing | Place of Publication | Editor | ||
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| ISSN | 0953-2048 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ sasha @ korneeva2014superconducting | Serial | 1044 | ||
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| Author | Smirnov, K.; Divochiy, A.; Vakhtomin, Y.; Morozov, P.; Zolotov, P.; Antipov, A.; Seleznev, V. | ||||
| Title | NbN single-photon detectors with saturated dependence of quantum efficiency | Type | Journal Article | ||
| Year | 2018 | Publication | Supercond. Sci. Technol. | Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume | 31 | Issue | 3 | Pages | 035011 (1 to 8) |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | The possibility of creating NbN superconducting single-photon detectors with saturated dependence of quantum efficiency (QE) versus normalized bias current was investigated. It was shown that the saturation increases for the detectors based on finer films with a lower value of Rs300/Rs20. The decreasing of Rs300/Rs20 was related to the increasing influence of quantum corrections to conductivity of superconductors and, in turn, to the decrease of the electron diffusion coefficient. The best samples have a constant value of system QE 94% at Ib/Ic ~ 0.8 and wavelength 1310 nm. | ||||
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| ISSN | 0953-2048 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1232 | |||
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| Author | Lipatov, A.; Okunev, O.; Smirnov, K.; Chulkova, G.; Korneev, A.; Kouminov, P.; Gol'tsman, G.; Zhang, J.; Slysz, W.; Verevkin, A.; Sobolewski, R. | ||||
| Title | An ultrafast NbN hot-electron single-photon detector for electronic applications | Type | Journal Article | ||
| Year | 2002 | Publication | Supercond. Sci. Technol. | Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume | 15 | Issue | 12 | Pages | 1689-1692 |
| Keywords | NbN SSPD, SNSPD, QE, jitter, dark counts | ||||
| Abstract | We present the latest generation of our superconducting single-photon detector (SPD), which can work from ultraviolet to mid-infrared optical radiation wavelengths. The detector combines a high speed of operation and low jitter with high quantum efficiency (QE) and very low dark count level. The technology enhancement allows us to produce ultrathin (3.5 nm thick) structures that demonstrate QE hundreds of times better, at 1.55 μm, than previous 10 nm thick SPDs. The best, 10 × 10 μm2, SPDs demonstrate QE up to 5% at 1.55 μm and up to 11% at 0.86 μm. The intrinsic detector QE, normalized to the film absorption coefficient, reaches 100% at bias currents above 0.9 Ic for photons with wavelengths shorter than 1.3 μm. | ||||
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| ISSN | 0953-2048 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1533 | |||
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| Author | Il'in, K. S.; Verevkin, A. A.; Gol'tsman, G. N.; Sobolewski, R. | ||||
| Title | Infrared hot-electron NbN superconducting photodetectors for imaging applications | Type | Journal Article | ||
| Year | 1999 | Publication | Supercond. Sci. Technol. | Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume | 12 | Issue | 11 | Pages | 755-758 |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | We report an effective quantum efficiency of 340, responsivity >200 A W-1 (>104 V W-1) and response time of 27±5 ps at temperatures close to the superconducting transition for NbN superconducting hot-electron photodetectors (HEPs) in the near-infrared and optical ranges. Our studies were performed on a few nm thick NbN films deposited on sapphire substrates and patterned into µm-size multibridge detector structures, incorporated into a coplanar transmission line. The time-resolved photoresponse was studied by means of subpicosecond electro-optic sampling with 100 fs wide laser pulses. The quantum efficiency and responsivity studies of our photodetectors were conducted using an amplitude-modulated infrared beam, fibre-optically coupled to the device. The observed picosecond response time and the very high efficiency and sensitivity of the NbN HEPs make them an excellent choice for infrared imaging photodetectors and input optical-to-electrical transducers for superconducting digital circuits. | ||||
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| ISSN | 0953-2048 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1562 | |||
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| Author | Manova, N. N.; Korneeva, Yu. P.; Korneev, A. A.; Slysz, W.; Voronov, B. M.; Gol'tsman, G. N. | ||||
| Title | Superconducting NbN single-photon detector integrated with quarter-wave resonator | Type | Journal Article | ||
| Year | 2011 | Publication | Tech. Phys. Lett. | Abbreviated Journal |
Tech. Phys. Lett. |
| Volume | 37 | Issue | 5 | Pages | 469-471 |
| Keywords | SSPD, SNSPD | ||||
| Abstract | The spectral dependence of the quantum efficiency of superconducting NbN single-photon detectors integrated with quarter-wave resonators based on Si3N4, SiO2, and SiO layers has been studied. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 664 | ||
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| Author | Смирнов, Константин Владимирович; Вахтомин, Юрий Борисович; Смирнов, Андрей Владимирович; Ожегов, Роман Викторович; Пентин, Иван Викторович; Дивочий, Александр Валерьевич; Сливинская, Елизавета Вячеславовна; Гольцман, Григорий Наумович | ||||
| Title | Приемники терагерцового и инфракрасного диапазонов, основанные на тонкопленочных сверхпроводниковых наноструктурах | Type | Journal Article | ||
| Year | 2010 | Publication | Вестник НГУ. Серия: Физика | Abbreviated Journal |
Вестник НГУ. Серия: Физика |
| Volume | 5 | Issue | 4 | Pages | |
| Keywords | HEB, SSPD, SNSPD | ||||
| Abstract | В работе представлены результаты разработки и создания чувствительных и ультрабыстрых приемников, основанных на тонкопленочных сверхпроводниковых наноструктурах: болометрах на эффекте электронного разогрева (HEB – hot-electron bolometer) и детекторах одиночных фотонов видимого и инфракрасного диапазонов волн (SSPD – superconducting singe-photon detector). Представлены основные принципы работы сверхпроводниковых устройств, технология создания и конструкционные особенности приемников, их основные типы и характеристики. Достигнутые рекордные значения параметров приемных систем позволяют использовать созданные приборы при решении различных научно-исследовательских задач в ближнем, среднем и дальнем ИК диапазонах волн. This work presents the results of the development and fabrication of sensitive and ultrafast detectorsbased on thin film superconducting nanostructures: hot-electron bolometers (HEBs) and visible and infrared superconducting singe photon detectors (SSPDs). The main operational principles of the superconducting devices are presentedas well as the technology of fabrication of the detectors and their main types and parameters. The achieved record parameters of the detectors allow application of the fabricated devices to solution of various research problems in the near, middle and far IR ranges. |
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| Publisher | Новосибирский государственный университет | Place of Publication | Editor | ||
| Language | Russian | Summary Language | Original Title | ||
| Series Editor | Series Title | Физика | Abbreviated Series Title | ||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1818-7994 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | УДК 538.9 | Approved | no | ||
| Call Number | RPLAB @ sasha @ смирнов2010приемники | Serial | 1033 | ||
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| Author | Чулкова, Г. М.; Семенов, А. В.; Корнеев, А. А.; Кардакова, А. И.; Аверьев, Н. В.; Ан, П. П.; Казаков, А. Ю.; Трифонов, А. В. | ||||
| Title | Спектральная чувствительность сверхпроводникового однофотонного детектора | Type | Journal Article | ||
| Year | 2011 | Publication | Журнал радиоэлектроники | Abbreviated Journal |
Ж. радиоэлектрон. |
| Volume | 11 | Issue | Pages | 5 | |
| Keywords | SSPD; quantum efficiency; spectral sensitivity | ||||
| Abstract | We consider quantum efficiency dependence on photons' energy from hot spot model. Direction of quasiparticles diffusion drive across superconductive film. The maximal quantum efficiency is proportional to a probability of photon absorption. The spectral sensitivity of superconductive single photon detector does not have clearly expressed red limit. Changing regimes of work depends on a wavelength we can get high values of quantum efficiency in visible and infrared range which will be specified by the quality of fabrication of detectors and their consistency with the radiation. Key words: superconducting single-photon detector, SSPD, quantum efficiency, spectral sensitivity. В статье представлена зависимость квантовой эффективности от энергии фотона в рамках модели горячего пятна. Диффузия квазичастиц происходит в основном перпендикулярно направлению тока в областях с максимальной плотностью тока. Максимальная квантовая эффективность детектора пропорциональна вероятности поглощения фотона. Несмотря на квантовый характер работы сверхпроводникового однофотонного детектора, он не имеет четко выраженной красной границы. Изменяя режим работы в зависимости от длины волны можно в видимом и инфракрасном диапазонах получать высокие значения квантовой эффективности, которые будут определяться лишь качеством изготовления детекторов и степенью их согласования с излучением. |
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| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 844 | ||
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| Author | Чулкова, Г. М.; Семёнов, А. В.; Дивочий, А. В.; Тархов, М. А. | ||||
| Title | Сверхпроводниковый однофотонный детектор с разрешением числа фотонов для систем дальней телекоммуникационной связи | Type | Journal Article | ||
| Year | 2011 | Publication | Ж. радиоэлектрон. | Abbreviated Journal |
Ж. радиоэлектрон. |
| Volume | Issue | 12 | Pages | 1-6 | |
| Keywords | PNR SSPD, SNSPD | ||||
| Abstract | Рассмотрена возможность применения сверхпроводникового однофотонного детектора, разрешающего число фотонов, в качестве датчика приёмных модулей телекоммуникационных линий. Показано, что для достижения доли ошибочных битов на уровне 10-11 достаточно на два порядка меньшей мощности в оптическом импульсе, чем при использовании существующих приёмных модулей. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ sasha @ чулковасверхпроводниковый | Serial | 1031 | ||
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| Author | Елезов, М. С.; Корнеев, А. А; Дивочий, А. В.; Гольцман, Г. Н. | ||||
| Title | Сверхпроводящие однофотонные детекторы с разрешением числа фотонов | Type | Conference Article | ||
| Year | 2009 | Publication | Науч. сессия МИФИ | Abbreviated Journal |
Науч. сессия МИФИ |
| Volume | Issue | Pages | 47-58 | ||
| Keywords | PNR SSPD, SNSPD | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-5-7262-1042-1 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | УДК 533.14(06)+004.056(06) Фотоника и информационная оптика | Approved | no | ||
| Call Number | RPLAB @ sasha @ елезов2009сверхпроводящие | Serial | 1029 | ||
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| Author | Флоря, И. Н. | ||||
| Title | Ультрабыстрый однофотонный детектор для оптических применений | Type | Conference Article | ||
| Year | 2009 | Publication | Науч. сессия МИФИ | Abbreviated Journal |
Науч. сессия МИФИ |
| Volume | Issue | Pages | 45-46 | ||
| Keywords | SSPD | ||||
| Abstract | Представлен сверхпроводниковый однофотонный детектор (SSPD) на основе ультратонкой пленки NbN, обладающий рекордным быстродействием. Активный элемент выполнен в виде N сверхпроводящих полосок соединенных параллельно, покрывающих площадку размером 10 мкм х 10 мкм. Для SSPD с N=12 длительность импульса напряжения составляет 200 пс. Полученные результаты открывают путь к детекторам обладающими скоростью счета свыше 1 ГГц, что делает SSPDs весьма привлекательными во многих применениях, в частности для квантовой криптографии. SSPD хорошо согласуется с оптоволокном и легко может быть интегрирован в полностью готовую для работы приемную систему. | ||||
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| ISSN | ISBN | 978-5-7262-1042-1 | Medium | ||
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| Notes | УДК 533.14(06)+004.056(06) Фотоника и информационная оптика | Approved | no | ||
| Call Number | Serial | 1145 | |||
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| Author | Корнеева, Ю. П.; Флоря, И. Н.; Корнеев, А. А.; Гольцман, Г. Н. | ||||
| Title | Cверхпроводящий однофотонный детектор для дальнего ИК диапазона длин волн | Type | Conference Article | ||
| Year | 2010 | Publication | Науч. сессия НИЯУ МИФИ | Abbreviated Journal |
Науч. сессия НИЯУ МИФИ |
| Volume | Issue | Pages | 46-47 | ||
| Keywords | SSPD | ||||
| Abstract | Мы представляем быстродействующий сверхпроводниковый однофотонный детектор (SSPD) для дальнего инфракрасного диапазона на основе ультратонкой монокристаллической пленки NbN толщиной 3 нм, состоящий из параллельных полосок. QE на длине волны 1,5.μм и 1,3 μм для предложенного SSPD практически одинаковы. SSPD показывает отклик длительностью 200 пс, что открывает путь к детекторам, обладающим скоростью счета свыше 1 ГГц. | ||||
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| ISSN | ISBN | 978-5-7262-1227-2 | Medium | ||
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| Notes | УДК 533.14(06)+004.056(06) Фотоника и информационная оптика | Approved | no | ||
| Call Number | Serial | 1144 | |||
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| Author | Манова, Н.Н.; Корнеева, Ю. П.; Корнеев, А. А., Гольцман, Г. Н. | ||||
| Title | Cверхпроводящий однофотонный детектор, интегрированный с оптическим резонатором | Type | Conference Article | ||
| Year | 2010 | Publication | Науч. сессия НИЯУ МИФИ | Abbreviated Journal |
Науч. сессия НИЯУ МИФИ |
| Volume | Issue | Pages | 92-93 | ||
| Keywords | SSPD | ||||
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| ISSN | ISBN | 978-5-7262-1227-2 | Medium | ||
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| Notes | УДК 533.14(06)+004.056(06) Фотоника и информационная оптика | Approved | no | ||
| Call Number | Serial | 1143 | |||
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| Author | Манова, Н.Н.; Корнеева, Ю.П.; Корнеев, А.А.; Слыш, В.; Воронов, Б.М.; Гольцман, Г.Н. | ||||
| Title | Сверхпроводниковый NbN однофотонный детектор, интегрированный с четвертьволновым резонатором | Type | Journal Article | ||
| Year | 2011 | Publication | Письма в Журнал технической физики | Abbreviated Journal |
ПЖТФ |
| Volume | 37 | Issue | 10 | Pages | 7 |
| Keywords | SSPD | ||||
| Abstract | Исследована спектральная зависимость квантовой эффективности сверхпроводниковых NbN однофотонных детекторов, интегрированных с оптическими четвертьволновыми резонаторами с использованием диэлектриков Si3N4, SiO2, SiO. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 637 | ||
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| Author | Мошкова, М. А.; Дивочий, А. В.; Морозов, П. В.; Золотов, Ф. И.; Вахтомин, Ю. Б.; Смирнов, К. В. | ||||
| Title | Высокоэффективные NBN однофотонные детекторы с разрешением числа фотонов | Type | Conference Article | ||
| Year | 2018 | Publication | Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. | Abbreviated Journal |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
| Volume | Issue | Pages | 400-401 | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | Разработаны и исследованы сверхпроводниковые однофотонные детекторы, способные к разрешению до 3-х фотонов в коротком импульсе излучения и имеющие квантовую эффективность детектирования одиночных фотонов ~60% на длине волны lambda=1.55 мкм. Проведенная модернизация технологии изготовления детекторов, позволила получить приемные устройства с мультифотонной квантовой эффективностью, приближающейся к расчетным значениям. | ||||
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| Language | Russian | Summary Language | Original Title | ||
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| ISSN | ISBN | 978-5-7262-2445-9 | Medium | ||
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| Notes | УДК 535(06)+004(06) | Approved | no | ||
| Call Number | Serial | 1250 | |||
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| Author | Симонов, Н. О.; Флоря, И. Н.; Корнеева, Ю. П.; Корнеев, А. А.; Гольцман, Г. Н. | ||||
| Title | Однофотонный отклик в тонких сверхпроводящих MoNx пленках | Type | Conference Article | ||
| Year | 2018 | Publication | Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. | Abbreviated Journal |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
| Volume | Issue | Pages | 408-409 | ||
| Keywords | SSPD, SNSPD | ||||
| Abstract | Продемонстрирован однофотонный отклик, при токе близком к критическому, в MoNx сверхпроводящих полосках шириной 70-104 нм. MoNx детекторы, имеющие коэффициент диффузии D≈0.32 см2/с и время электрон-фононного взаимодействия ηe-ph≈300 пс, достигают квантовой эффективности QE≈20% на длине волны λ=1550 нм. Возможность реализации однофотонного детектора в данном материале, подтверждает существующую теорию вихревого механизма возникновения фотоотклика в узких сверхпроводящих полосках. | ||||
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| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-5-7262-2445-9 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | УДК 535(06)+004(06) | Approved | no | ||
| Call Number | Serial | 1251 | |||
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| Author | Золотов, Ф. И.; Дивочий, А. В.; Вахтомин, Ю. Б.; Пентин, И. В.; Морозов, П. В.; Селезнев, В. А.; Смирнов, К. В. | ||||
| Title | Применение тонких сверхпроводниковых пленок нитрида ванадия для изготовления счетчиков одиночных ИК-фотонов | Type | Conference Article | ||
| Year | 2018 | Publication | Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. | Abbreviated Journal |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
| Volume | Issue | Pages | 60-61 | ||
| Keywords | VN SSPD, SNSPD | ||||
| Abstract | Получены первые результаты по применению сверхпроводниковых пленок нитрида ванадия (VN) для детекторов одиночных фотонов ИК-диапазона. Изучение сверхпроводниковых однофотонных детекторов (SSPD), изготовленных на основе ультратонких (~5 нм) пленок VN, показало возможность создания устройств с близкой к насыщению зависимостью квантовой эффективности от тока смещения детекторов в телекоммуникационном диапазоне длин волн. Также нами были исследованы кинетическая индуктивность изготовленных структур с различной длиной сверхпроводниковой полоски и времена релаксации электронов в тонких сверхпроводниковых пленках VN. | ||||
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| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | 978-5-7262-2445-9 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | УДК 535(06)+004(06) | Approved | no | ||
| Call Number | Serial | 1252 | |||
| Permanent link to this record | |||||
| Author | Флоря, И.Н.; Корнеева, Ю.П.; Корнеев, А.А.; Гольцман, Г.Н. | ||||
| Title | Сверхпроводниковый однофотонный детектор для среднего инфракрасного диапазона на основе узких параллельных полосок | Type | Journal Article | ||
| Year | 2011 | Publication | Труды Московского физико-технического института | Abbreviated Journal |
Труды МФТИ |
| Volume | 3 | Issue | 2 | Pages | 14-17 |
| Keywords | SSPD | ||||
| Abstract | Мы рассматриваем ультрабыстрый сверхпроводниковый однофотонный детектор (SSPD). SSPD представляет собой тонкопленочную наноструктуру — очень узкую и длинную полоску сверхпроводника, изогнутую в виде меандра, изготовленную из пленки NbN толщиной 4 нм, нанесенной на сапфировую подложку. SSPD хорошо сопрягается с оптоволокном и легко может быть интегрирован в полностью готовую для работы приемную систему. В стремлении продвинуться в средний ИК диапозон нам удалось разработать SSPD в виде параллельно соединенных полосок с шириной полоски всего 50 нм и сохранить при этом сверхпроводящие свойства. Эти детекторы показывают более чем на порядок большую чувствительность на длине волны 3;5 мкм, чем SSPD в виде меандра. Полученные результаты открывают путь к эффективным детекторам среднего ИК-диапазона, обладающим скоростью счета свыше 1 ГГц. | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 706 | ||
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| Author | Пентин, И. В.; Смирнов, К. В.; Вахтомин, Ю. Б.; Смирнов, А. В.; Ожегов, Р. В.; Дивочий, А. В.; Гольцман, Г. Н. | ||||
| Title | Быстродействующий терагерцевый приемник и инфракрасный счетчик одиночных фотонов на эффекте разогрева электронов в сверхпроводниковых тонкопленочных наноструктурах | Type | Journal Article | ||
| Year | 2011 | Publication | Труды МФТИ | Abbreviated Journal |
Труды МФТИ |
| Volume | 3 | Issue | 2 | Pages | 38-42 |
| Keywords | SSPD, SNSPD, HEB | ||||
| Abstract | Представлены результаты создания приемных систем терагерцевого диапазона (0.3-70 ТГц), обладающих рекордным быстродействием (50 пс) и высокой чувствительностью (до 5x 10^(-14) Вт/Гц^(1/2)), а также однофотонных приемных систем ближнего инфракрасного диапазона с квантовой эффективностью 25 %, уровнем темнового счета 10-1c., максимальной скоростью счета ~ 100 МГц и временным разрешением до 50 пс. | ||||
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| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | RPLAB @ gujma @ | Serial | 707 | ||
| Permanent link to this record | |||||