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Author | Korneev, A.; Korneeva, Y.; Manova, N.; Larionov, P.; Divochiy, A.; Semenov, A.; Chulkova, G.; Vachtomin, Y.; Smirnov, K.; Goltsman, G. | ||||
Title | Recent nanowire superconducting single-photon detector optimization for practical applications | Type | Journal Article | ||
Year | 2013 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
Volume | 23 | Issue | 3 | Pages | 2201204 (1 to 4) |
Keywords | SSPD, SNSPD | ||||
Abstract | In this paper, we present our approaches to the development of fiber-coupled superconducting single photon detectors with enhanced photon absorption. For such devices we have measured detection efficiency in wavelength range from 500 to 2000 nm. The best fiber coupled devices exhibit detection efficiency of 44.5% at 1310 nm wavelength and 35.5% at 1550 nm at 10 dark counts per second. | ||||
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Notes | Approved | no | |||
Call Number | RPLAB @ akorneev @ KorneevIEEE2013 | Serial | 996 | ||
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Author | Kitaygorsky, J.; Zhang, J.; Verevkin, A.; Sergeev, A.; Korneev, A.; Matvienko, V.; Kouminov, P.; Smirnov, K.; Voronov, B.; Gol'tsman, G.; Sobolewski, R. | ||||
Title | Origin of dark counts in nanostructured NbN single-photon detectors | Type | Journal Article | ||
Year | 2005 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
Volume | 15 | Issue | 2 | Pages | 545-548 |
Keywords | SSPD dark counts, SNSPD, dark counts rate | ||||
Abstract | We present our study of dark counts in ultrathin (3.5 to 10 nm thick), narrow (120 to 170 nm wide) NbN superconducting stripes of different lengths. In experiments, where the stripe was completely isolated from the outside world and kept at temperature below the critical temperature Tc, we detected subnanosecond electrical pulses associated with the spontaneous appearance of the temporal resistive state. The resistive state manifested itself as generation of phase-slip centers (PSCs) in our two-dimensional superconducting stripes. Our analysis shows that not far from Tc, PSCs have a thermally activated nature. At lowest temperatures, far below Tc, they are created by quantum fluctuations. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1057 | |||
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Author | Pearlman, A.; Cross, A.; Slysz, W.; Zhang, J.; Verevkin, A.; Currie, M.; Korneev, A.; Kouminov, P.; Smirnov, K.; Voronov, B.; Gol’tsman, G.; Sobolewski, R. | ||||
Title | Gigahertz counting rates of NbN single-photon detectors for quantum communications | Type | Journal Article | ||
Year | 2005 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
Volume | 15 | Issue | 2 | Pages | 579-582 |
Keywords | NbN SSPD, SNSPD | ||||
Abstract | We report on the GHz counting rate and jitter of our nanostructured superconducting single-photon detectors (SSPDs). The devices were patterned in 4-nm-thick and about 100-nm-wide NbN meander stripes and covered a 10-/spl mu/m/spl times/10-/spl mu/m area. We were able to count single photons at both the visible and infrared telecommunication wavelengths at rates of over 2 GHz with a timing jitter of below 18 ps. We also present the model for the origin of the SSPD switching dynamics and jitter, based on the time-delay effect in the phase-slip-center formation mechanism during the detector photoresponse process. With further improvements in our readout electronics, we expect that our SSPDs will reach counting rates of up to 10 GHz. An integrated quantum communications receiver based on two fiber-coupled SSPDs and operating at 1550-nm wavelength is also presented. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 1558-2515 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1465 | |||
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Author | Korneev, A.; Matvienko, V.; Minaeva, O.; Milostnaya, I.; Rubtsova, I.; Chulkova, G.; Smirnov, K.; Voronov, V.; Gol’tsman, G.; Slysz, W.; Pearlman, A.; Verevkin, A.; Sobolewski, R. | ||||
Title | Quantum efficiency and noise equivalent power of nanostructured, NbN, single-photon detectors in the wavelength range from visible to infrared | Type | Journal Article | ||
Year | 2005 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
Volume | 15 | Issue | 2 | Pages | 571-574 |
Keywords | NbN SSPD, SNSPD, QE, NEP | ||||
Abstract | We present our studies on the quantum efficiency (QE) and the noise equivalent power (NEP) of the latest-generation, nanostructured, superconducting, single-photon detectors (SSPDs) in the wavelength range from 0.5 to 5.6 /spl mu/m, operated at temperatures in the 2.0- to 4.2-K range. Our detectors are designed as 4-nm-thick and 100-nm-wide NbN meander-shaped stripes, patterned by electron-beam lithography and cover a 10/spl times/10-/spl mu/m/sup 2/ active area. The best-achieved QE at 2.0 K for 1.55-/spl mu/m photons is 17%, and QE for 1.3-/spl mu/m infrared photons reaches its saturation value of /spl sim/30%. The SSPD NEP at 2.0 K is as low as 5/spl times/10/sup -21/ W/Hz/sup -1/2/. Our nanostructured SSPDs, operated at 2.0 K, significantly outperform their semiconducting counterparts, and, together with their GHz counting rate and picosecond timing jitter, they are devices-of-choice for practical quantum key distribution systems and free-space (even interplanetary) quantum optical communications. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 1558-2515 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1467 | |||
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Author | Gol’tsman, G. N.; Smirnov, K.; Kouminov, P.; Voronov, B.; Kaurova, N.; Drakinsky, V.; Zhang, J.; Verevkin, A.; Sobolewski, R. | ||||
Title | Fabrication of nanostructured superconducting single-photon detectors | Type | Journal Article | ||
Year | 2003 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
Volume | 13 | Issue | 2 | Pages | 192-195 |
Keywords | NbN SSPD, SNSPD | ||||
Abstract | Fabrication of NbN superconducting single-photon detectors, based on the hotspot effect is presented. The hotspot formation arises in an ultrathin and submicrometer-width superconductor stripe and, together with the supercurrent redistribution, leads to the resistive detector response upon absorption of a photon. The detector has a meander structure to maximally increase its active area and reach the highest detection efficiency. Main processing steps, leading to efficient devices, sensitive in 0.4-5 /spl mu/m wavelength range, are presented. The impact of various processing steps on the performance and operational parameters of our detectors is discussed. | ||||
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ISSN | 1558-2515 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1515 | |||
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Author | Smirnov, K.; Moshkova, M.; Antipov, A.; Morozov, P.; Vakhtomin, Y. | ||||
Title | The cascade switching of the photon number resolving superconducting single-photon detectors | Type | Journal Article | ||
Year | 2021 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | IEEE Trans. Appl. Supercond. |
Volume | 31 | Issue | 2 | Pages | 1-4 |
Keywords | PNR SSPD, SNSPD | ||||
Abstract | In this article, present the first detailed study of cascade switching in superconducting photon number resolving detectors. The detectors were made in the form of four parallel nanowires, coupled with the single-mode optical fiber and mounted into a closed-cycle refrigerator with a temperature of 2.1 K. We found out the value of additional false pulses (N cas.sw. ) appearing due to cascade switching and showed that it is possible to set up the detector bias current that corresponds to a high level of the detection efficiency and a low level of N cas.sw. simultaneously. We reached the detection efficiency of 60% and N cas.sw. = 0.3%. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 1051-8223 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1796 | |||
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Author | Hübers, H.-W.; Semenov, A.; Richter, H.; Birk, M.; Krocka, M.; Mair, U.; Smirnov, K.; Gol’tsman, G.; Voronov, B. | ||||
Title | Terahertz Heterodyn Receiver with a hot-electron bolometer mixer | Type | Conference Article | ||
Year | 2002 | Publication | Far-IR, Sub-mm & MM Detector Technology Workshop | Abbreviated Journal | Far-IR, Sub-mm & MM Detector Technology Workshop |
Volume | Issue | Pages | 3-24 | ||
Keywords | NbN HEB mixers | ||||
Abstract | During the past decade major advances have been made regarding low noise mixers for terahertz (THz) heterodyne receivers. State of the art hot-electron-bolometer (HEB) mixers have noise temperatures close to the quantum limit and require less than a µW power from the local oscillator (LO). The technology is now at a point where the performance of a practical receiver employing such mixer, rather than the figures of merit of the mixer itself, are of major concern. We have incorporated a phonon-cooled NbN HEB mixer in a 2.5 THz heterodyne receiver and investigated the performance of the receiver. This yields important information for the development of heterodyne receivers such as GREAT (German receiver for astronomy at THz frequencies aboard SOFIA) [1] and TELIS (Terahertz limb sounder), a balloon borne heterodyne receiver for atmospheric research [2]. Both are currently under development at DLR. | ||||
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Publisher | NASA | Place of Publication | Editor | Wolf, U.; Farhoomand, J.; McCreight, C.R. | |
Language | Summary Language | Original Title | |||
Series Editor | Series Title | NASA CP | Abbreviated Series Title | ||
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Notes | Volume: 211408 | Approved | no | ||
Call Number | Serial | 1537 | |||
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Author | Lobanov, Y. V.; Vakhtomin, Y. B.; Pentin, I. V.; Khabibullin, R. A.; Shchavruk, N. V.; Smirnov, K. V.; Silaev, A. A. | ||||
Title | Characterization of the THz quantum cascade laser using fast superconducting hot electron bolometer | Type | Journal Article | ||
Year | 2018 | Publication | EPJ Web Conf. | Abbreviated Journal | EPJ Web Conf. |
Volume | 195 | Issue | Pages | 04004 (1 to 2) | |
Keywords | NbN HEB, QCL | ||||
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ISSN | 2100-014X | ISBN | Medium | ||
Area | Expedition | Conference | 3rd International Conference “Terahertz and Microwave Radiation: Generation, Detection and Applications” (TERA-2018) | ||
Notes | Approved | no | |||
Call Number | Serial | 1808 | |||
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Author | Zhang, J.; Boiadjieva, N.; Chulkova, G.; Deslandes, H.; Gol'tsman, G. N.; Korneev, A.; Kouminov, P.; Leibowitz, M.; Lo, W.; Malinsky, R.; Okunev, O.; Pearlman, A.; Slysz, W.; Smirnov, K.; Tsao, C.; Verevkin, A.; Voronov, B.; Wilsher, K.; Sobolewski, R. | ||||
Title | Noninvasive CMOS circuit testing with NbN superconducting single-photon detectors | Type | Journal Article | ||
Year | 2003 | Publication | Electron. Lett. | Abbreviated Journal | Electron. Lett. |
Volume | 39 | Issue | 14 | Pages | 1086-1088 |
Keywords | NbN SSPD, SNSPD, applications | ||||
Abstract | The 3.5 nm thick-film, meander-structured NbN superconducting single-photon detectors have been implemented in the CMOS circuit-testing system based on the detection of near-infrared photon emission from switching transistors and have significantly improved the performance of the system. Photon emissions from both p- and n-MOS transistors have been observed. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 0013-5194 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1512 | |||
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Author | Verevkin, A.; Slysz, W.; Pearlman, A.; Zhang, J.; Sobolewski, R.; Okunev, O.; Korneev, A.; Kouminov, P.; Smirnov, K.; Chulkova, G.; Gol’tsman, G. N.; Currie, M. | ||||
Title | Real-time GHz-rate counting of infrared photons using nanostructured NbN superconducting detectors | Type | Conference Article | ||
Year | 2003 | Publication | CLEO/QELS | Abbreviated Journal | CLEO/QELS |
Volume | Issue | Pages | CThM8 | ||
Keywords | NbN SSPD; SNSPD; Infrared; Quantum detectors; Detectors; Photon counting; Quantum communications; Quantum cryptography; Single photon detectors; Superconductors | ||||
Abstract | We demonstrate that our ultrathin, nanometer-width NbN superconducting single-photon detectors are capable of above 1-GHz-frequency, real-time counting of near-infrared photons. The measured system jitter of the detector is below 15 ps. | ||||
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Publisher | Optical Society of America | Place of Publication | Editor | ||
Language | Summary Language | Original Title | |||
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ISSN | ISBN | Medium | |||
Area | Expedition | Conference | Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference | ||
Notes | Approved | no | |||
Call Number | Serial | 1517 | |||
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Author | Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. | ||||
Title | Single-photonics at telecom wavelengths using nanowire superconducting single photon detectors | Type | Conference Article | ||
Year | 2007 | Publication | CLEO/QELS | Abbreviated Journal | CLEO/QELS |
Volume | Issue | Pages | QTuF6 (1 to 2) | ||
Keywords | SSPD, SNSPD | ||||
Abstract | Novel single-photon detectors based on NbN superconducting nanostructures promise orders-of- magnitude improvement over InGaAs APDs. We demonstrate this improved performance for the first time by measuring the g(2)(τ) on single photon states produced by a quantum dot at telecom wavelength. | ||||
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Publisher | Optical Society of America | Place of Publication | Editor | ||
Language | Summary Language | Original Title | |||
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ISSN | ISBN | Medium | |||
Area | Expedition | Conference | Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies | ||
Notes | Approved | no | |||
Call Number | Zinoni:07 | Serial | 1432 | ||
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Author | Zhang, J.; Pearlman, A.; Slysz, W.; Verevkin, A.; Sobolewski, R.; Okunev, O.; Korneev, A.; Kouminov, P.; Smirnov, K.; Chulkova, G.; Gol’tsman, G. N.; Lo, W.; Wilsher, K. | ||||
Title | Infrared picosecond superconducting single-photon detectors for CMOS circuit testing | Type | Conference Article | ||
Year | 2003 | Publication | CLEO/QELS | Abbreviated Journal | CLEO/QELS |
Volume | Issue | Pages | Cmv4 | ||
Keywords | NbN SSPD; SNSPD; Infrared; Quantum detectors; Electron beam lithography; Infrared detectors; Infrared radiation; Quantum efficiency; Single photon detectors; Superconductors | ||||
Abstract | Novel, NbN superconducting single-photon detectors have been developed for ultrafast, high quantum efficiency detection of single quanta of infrared radiation. Our devices have been successfully implemented in a commercial VLSI CMOS circuit testing system. | ||||
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Publisher | Optical Society of America | Place of Publication | Editor | ||
Language | Summary Language | Original Title | |||
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ISSN | ISBN | Medium | |||
Area | Expedition | Conference | Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference | ||
Notes | Approved | no | |||
Call Number | Serial | 1518 | |||
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Author | Xu, Y.; Zheng, X.; Williams, C.; Verevkin, A.; Sobolewski, R.; Chulkova, G.; Lipatov, A.; Okunev, O.; Smirnov, K.; Gol’tsman, G. N. | ||||
Title | Ultrafast superconducting hot-electron single-photon detector | Type | Conference Article | ||
Year | 2001 | Publication | CLEO | Abbreviated Journal | CLEO |
Volume | Issue | Pages | 345 | ||
Keywords | NbN SSPD, SNSPD | ||||
Abstract | Summary form only given. The current most-pressing need is to develop a practical, GHz-range counting single-photon detector, operational at either 1.3-/spl mu/m or 1.55-/spl mu/m radiation wavelength, for novel quantum communication and quantum cryptography systems. The presented solution of the problem is to use an ultrafast hot-electron photodetector, based on superconducting thin-film microstructures. This type of device is very promising, due to the macroscopic quantum nature of superconductors. Very fast response time and the small, (meV range) value of the superconducting energy gap characterize the superconductor, leading to the efficient avalanche process even for infrared photons. | ||||
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Area | Expedition | Conference | Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170) | ||
Notes | Approved | no | |||
Call Number | Serial | 1545 | |||
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Author | Shangina, E. L.; Smirnov, K. V.; Morozov, D. V.; Kovalyuk, V. V.; Gol’tsman, G. N.; Verevkin, A. A.; Toropov, A. I. | ||||
Title | Concentration dependence of the intermediate frequency bandwidth of submillimeter heterodyne AlGaAs/GaAs nanostructures | Type | Journal Article | ||
Year | 2010 | Publication | Bull. Russ. Acad. Sci. Phys. | Abbreviated Journal | Bull. Russ. Acad. Sci. Phys. |
Volume | 74 | Issue | 1 | Pages | 100-102 |
Keywords | 2DEG AlGaAs/GaAs heterostructures, THz heterodyne detectors, IF bandwidth | ||||
Abstract | The concentration dependence of the intermediate frequency bandwidth of heterodyne AlGaAs/GaAs detectors with 2D electron gas is measured using submillimeter spectroscopy with high time resolution at T= 4.2 K. The intermediate frequency bandwidth f3dBfalls from 245 to 145 MHz with increasing concentration of 2D electrons n s = (1.6-6.6) × 10[su11] cm-2. The dependence f3dB ≈ n s – 0.04±is observed in the studied concentration range; this dependence is determined by electron scattering by the deformation potential of acoustic phonons and piezoelectric scattering. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 1062-8738 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1217 | |||
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Author | Korneev, A.; Kouminov, P.; Matvienko, V.; Chulkova, G.; Smirnov, K.; Voronov, B.; Gol'tsman, G. N.; Currie, M.; Lo, W.; Wilsher, K.; Zhang, J.; Słysz, W.; Pearlman, A.; Verevkin, A.; Sobolewski, Roman | ||||
Title | Sensitivity and gigahertz counting performance of NbN superconducting single-photon detectors | Type | Journal Article | ||
Year | 2004 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 84 | Issue | 26 | Pages | 5338-5340 |
Keywords | SSPD, NEP, QE | ||||
Abstract | We have measured the quantum efficiencysQEd, GHz counting rate, jitter, and noise-equivalentpowersNEPdof nanostructured NbN superconducting single-photon detectorssSSPDsdin thevisible to infrared radiation range. Our 3.5-nm-thick and 100- to 200-nm-wide meander-typedevices(total area 10310mm2), operating at 4.2 K, exhibit an experimental QE of up to 20% inthe visible range and,10% at 1.3 to 1.55mm wavelength and are potentially sensitive up tomidinfrareds,10mmdradiation. The SSPD counting rate was measured to be above 2 GHz withjitter,18 ps, independent of the wavelength. The devices’ NEP varies from,10−17W/Hz1/2for1.55mm photons to,10−20W/Hz1/2for visible radiation. Lowering the SSPD operatingtemperature to 2.3 K significantly enhanced its performance, by increasing the QE to,20% andlowering the NEP level to,3310−22W/Hz1/2, both measured at 1.26mm wavelength. | ||||
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Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0003-6951 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 532 | |||
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Author | Elvira, D.; Michon, A.; Fain, B.; Patriarche, G.; Beaudoin, G.; Robert-Philip, I.; Vachtomin, Y.; Divochiy, A. V.; Smirnov, K. V.; Gol’tsman, G. N.; Sagnes, I.; Beveratos, A. | ||||
Title | Time-resolved spectroscopy of InAsP/InP(001) quantum dots emitting near 2 μm | Type | Journal Article | ||
Year | 2010 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 97 | Issue | 13 | Pages | 131907 (1 to 3) |
Keywords | SSPD, SNSPD, InAsP/InP quantum dots | ||||
Abstract | By using superconducting single photon detectors, we perform time-resolved characterization of a small ensemble of InAsP/InP quantum dots grown by metal organic vapor phase epitaxy, emitting at wavelengths between 1.6 and 2.2 μm. We demonstrate that alloying phosphorus with InAs allows to shift the emission wavelength toward higher wavelengths, while keeping the high optical quality of these quantum dots at room temperature, with no decrease in their radiative lifetime. This work was partially supported by Russian Ministry of Science and Education: Federal State Program “Scientific and Educational Cadres of Innovative” state Contract Nos. 02.740.0228, 14.740.11.0343, 14.740.11.0269, and P931, and RFBR Project No. 09-02-12364. | ||||
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Series Volume | Series Issue | Edition | |||
ISSN | 0003-6951 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1238 | |||
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Author | Smirnov, K. V.; Divochiy, A. V.; Vakhtomin, Y. B.; Sidorova, M. V.; Karpova, U. V.; Morozov, P. V.; Seleznev, V. A.; Zotova, A. N.; Vodolazov, D. Y. | ||||
Title | Rise time of voltage pulses in NbN superconducting single photon detectors | Type | Journal Article | ||
Year | 2016 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 109 | Issue | 5 | Pages | 052601 |
Keywords | SSPD, SNSPD | ||||
Abstract | We have found experimentally that the rise time of voltage pulse in NbN superconducting single photon detectors increases nonlinearly with increasing the length of the detector L. The effect is connected with dependence of resistance of the detector Rn, which appears after photon absorption, on its kinetic inductance Lk and, hence, on the length of the detector. This conclusion is confirmed by our calculations in the framework of two temperature model. D.Yu.V. acknowledges the support from the Russian Foundation for Basic Research (Project No. 15-42-02365). K.V.S. acknowledges the financial support from the Ministry of Education and Science of the Russian Federation (Contract No. 3.2655.2014/K). |
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ISSN | 0003-6951 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1236 | |||
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Author | Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. | ||||
Title | Erratum: “Single photon experiments at telecom wavelengths using nanowire superconducting detectors” [Appl. Phys. Lett. 91, 031106 (2007)] | Type | Journal Article | ||
Year | 2010 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 96 | Issue | 8 | Pages | 089901 |
Keywords | SSPD, SNSPD, erratum | ||||
Abstract | A calculation error was made in the original publication of this letter. The error was in the calculation of the noise equivalent power (NEP) values for the avalanche photodiode detector (APD) and the superconducting single photon detector (SSPD), the incorrect values were plotted on the right axis in Fig. 1(b). The correct NEP values were calculated with the same equation reported in the original letter and the revised Fig. 1(b) is shown below. The other conclusions of the paper remain unaltered. | ||||
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ISSN | 0003-6951 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | no | |||
Call Number | Serial | 1395 | |||
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Author | Zinoni, C.; Alloing, B.; Li, L. H.; Marsili, F.; Fiore, A.; Lunghi, L.; Gerardino, A.; Vakhtomin, Y. B.; Smirnov, K. V.; Gol’tsman, G. N. | ||||
Title | Single-photon experiments at telecommunication wavelengths using nanowire superconducting detectors | Type | Journal Article | ||
Year | 2007 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 91 | Issue | 3 | Pages | 031106 (1 to 3) |
Keywords | SSPD, SNSPD, APD | ||||
Abstract | The authors report fiber-coupled superconducting single-photon detectors with specifications that exceed those of avalanche photodiodes, operating at telecommunication wavelength, in sensitivity, temporal resolution, and repetition frequency. The improved performance is demonstrated by measuring the intensity correlation function g(2)(τ) of single-photon states at 1300nm produced by single semiconductor quantum dots. This work was supported by Swiss National Foundation through the “Professeur borsier” and NCCR Quantum Photonics program, FP6 STREP “SINPHONIA” (Contract No. NMP4-CT-2005-16433), IP “QAP” (Contract No. 15848), NOE “ePIXnet,” and the Italian MIUR-FIRB program. |
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ISSN | 0003-6951 | ISBN | Medium | ||
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Notes | Erratum: 1395 | Approved | no | ||
Call Number | Serial | 1396 | |||
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Author | Słysz, W.; Węgrzecki, M.; Bar, J.; Grabiec, P.; Górska, M.; Zwiller, V.; Latta, C.; Bohi, P.; Milostnaya, I.; Minaeva, O.; Antipov, A.; Okunev, O.; Korneev, A.; Smirnov, K.; Voronov, B.; Kaurova, N.; Gol’tsman, G.; Pearlman, A.; Cross, A.; Komissarov, I.; Verevkin, A.; Sobolewski, R. | ||||
Title | Fiber-coupled single-photon detectors based on NbN superconducting nanostructures for practical quantum cryptography and photon-correlation studies | Type | Journal Article | ||
Year | 2006 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 88 | Issue | 26 | Pages | 261113 (1 to 3) |
Keywords | SSPD, SNSPD | ||||
Abstract | We have fabricated and tested a two-channel single-photon detector system based on two fiber-coupled superconducting single-photon detectors (SSPDs). Our best device reached the system quantum efficiency of 0.3% in the 1540-nm telecommunication wavelength with a fiber-to-detector coupling factor of about 30%. The photoresponse consisted of 2.5-ns-wide voltage pulses with a rise time of 250ps and timing jitter below 40ps. The overall system response time, measured as a second-order, photon cross-correlation function, was below 400ps. Our SSPDs operate at 4.2K inside a liquid-helium Dewar, but their optical fiber inputs and electrical outputs are at room temperature. Our two-channel detector system should find applications in practical quantum cryptography and in antibunching-type quantum correlation measurements. The authors would like to thank Dr. Marc Currie for his assistance in early time-resolved photoresponse measurements and Professor Atac Imamoglu for his support. This work was supported by the Polish Ministry of Science under Project No. 3 T11B 052 26 (Warsaw), RFBR 03-02-17697 and INTAS 03-51-4145 grants (Moscow), CRDF Grant No. RE2-2531-MO-03 (Moscow), RE2-2529-MO-03 (Moscow and Rochester), and US AFOSR FA9550-04-1-0123 (Rochester). Additional funding was provided by the grants from the MIT Lincoln Laboratory and BBN Technologies Corp. |
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ISSN | 0003-6951 | ISBN | Medium | ||
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Notes | Approved | no | |||
Call Number | Serial | 1449 | |||
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Author | Gol’tsman, G. N.; Okunev, O.; Chulkova, G.; Lipatov, A.; Semenov, A.; Smirnov, K.; Voronov, B.; Dzardanov, A.; Williams, C.; Sobolewski, R. | ||||
Title | Picosecond superconducting single-photon optical detector | Type | Journal Article | ||
Year | 2001 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
Volume | 79 | Issue | 6 | Pages | 705-707 |
Keywords | NbN SSPD, SNSPD | ||||
Abstract | We experimentally demonstrate a supercurrent-assisted, hotspot-formation mechanism for ultrafast detection and counting of visible and infrared photons. A photon-induced hotspot leads to a temporary formation of a resistive barrier across the superconducting sensor strip and results in an easily measurable voltage pulse. Subsequent hotspot healing in ∼30 ps time frame, restores the superconductivity (zero-voltage state), and the detector is ready to register another photon. Our device consists of an ultrathin, very narrow NbN strip, maintained at 4.2 K and current-biased close to the critical current. It exhibits an experimentally measured quantum efficiency of ∼20% for 0.81 μm wavelength photons and negligible dark counts. | ||||
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ISSN | 0003-6951 | ISBN | Medium | ||
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Notes | Approved | no | |||
Call Number | Serial | 1543 | |||
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Author | Ren, Y.; Zhang, D. X.; Zhou, K. M.; Miao, W.; Zhang, W.; Shi, S. C.; Seleznev, V.; Pentin, I.; Vakhtomin, Y.; Smirnov, K. | ||||
Title | 10.6 μm heterodyne receiver based on a superconducting hot-electron bolometer mixer and a quantum cascade laser | Type | Journal Article | ||
Year | 2019 | Publication | AIP Advances | Abbreviated Journal | AIP Advances |
Volume | 9 | Issue | 7 | Pages | 075307 |
Keywords | NbN HEB mixers, QCL, IR | ||||
Abstract | We report on the development of a heterodyne receiver at mid-infrared wavelength for high-resolution spectroscopy applications. The receiver employs a superconducting NbN hot electron bolometer as a mixer and a room temperature distributed feedback quantum cascade laser operating at 10.6 μm (28.2 THz) as a local oscillator. The stabilization of the heterodyne receiver has been achieved using a feedback loop controlling the output power of the laser. Improved Allan variance times as well as a double sideband receiver noise temperature of 5000 K and a noise bandwidth of 2.8 GHz of the receiver system are demonstrated. The work is supported in part by the National Key R&D Program of China under Grant 2018YFA0404701, by the CAS program under Grant QYZDJ-SSW-SLH043 and GJJSTD20180003, by the National Natural Science Foundation of China (NSFC) under Grant 11773083, by the “Hundred Talents Program” of the “Pioneer Initiative”, and in part by the CAS Key Lab for Radio Astronomy. |
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ISSN | 2158-3226 | ISBN | Medium | ||
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Notes | Approved | no | |||
Call Number | Serial | 1293 | |||
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Author | Jukna, A.; Kitaygorsky, J.; Pan, D.; Cross, A.; Perlman, A.; Komissarov, I.; Sobolewski, R.; Okunev, O.; Smirnov, K.; Korneev, A.; Chulkova, G.; Milostnaya, I.; Voronov, B.; Gol'tsman, G. | ||||
Title | Dynamics of hotspot formation in nanostructured superconducting stripes excited with single photons | Type | Journal Article | ||
Year | 2008 | Publication | Acta Physica Polonica A | Abbreviated Journal | Acta Physica Polonica A |
Volume | 113 | Issue | 3 | Pages | 955-958 |
Keywords | SSPD, SNSPD | ||||
Abstract | Dynamics of a resistive hotspot formation by near-infrared-wavelength single photons in nanowire-type superconducting NbN stripes was investigated. Numerical simulations of ultrafast thermalization of photon-excited nonequilibrium quasiparticles, their multiplication and out-diffusion from a site of the photon absorption demonstrate that 1.55 μm wavelength photons create in an ultrathin, two-dimensional superconducting film a resistive hotspot with the diameter which depends on the photon energy, and the nanowire temperature and biasing conditions. Our hotspot model indicates that under the subcritical current bias of the 2D stripe, the electric field penetrates the superconductor at the hotspot boundary, leading to suppression of the stripe superconducting properties and accelerated development of a voltage transient across the stripe. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1414 | |||
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Author | Okunev, O.; Smirnov, K.; Chulkova, G.; Korneev, A.; Lipatov, A.; Gol'tsman, G.; Zhang, J.; Slysz, W.; Verevkin, A.; Sobolewski, Roman | ||||
Title | Ultrafast NBN hot-electron single-photon detectors for electronic applications | Type | Abstract | ||
Year | 2002 | Publication | Abstracts 8-th IUMRS-ICEM | Abbreviated Journal | Abstracts 8-th IUMRS-ICEM |
Volume | Issue | Pages | |||
Keywords | NbN SSPD, SNSPD | ||||
Abstract | We present a new, simple to manufacture, single-photon detector (SPD), which can work from ultraviolet to near-infrared wavelengths of optical radiation and combines high speed of operation, high quantum efficiency (QE), and very low dark counts. The devices are superconducting and operate at temperature below 5 K. The physics of operation of our SPD is based on formation of a photon-induced resistive hotspot and subsequent appearance of a transient resistive barrier across an ultrathin and submicron-wide superconductor. | ||||
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Area | Expedition | Conference | 8th IUMRS International Conference on Electronic Materials | ||
Notes | Approved | no | |||
Call Number | Serial | 1532 | |||
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Author | Zolotov, P.; Divochiy, A.; Korneeva, Yu.; Vakhtomin, Yu.; Seleznev, V.; Smirnov, K. | ||||
Title | Capability investigation of superconducting single-photon detectors, optimized for 800–1200 nm spectrum range | Type | Miscellaneous | ||
Year | 2015 | Publication | 3th ICQT | Abbreviated Journal | 3th ICQT |
Volume | Issue | Pages | |||
Keywords | SSPD, SNSPD | ||||
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Address | Hotel Ukraina (Radisson), Moscow | ||||
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Notes | Poster | Approved | no | ||
Call Number | Serial | 1253 | |||
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Author | Gol’tsman, G.; Korneev, A.; Tarkhov, M.; Seleznev, V.; Divochiy, A.; Minaeva, O.; Kaurova, N.; Voronov, B.; Okunev, O.; Chulkova, G.; Milostnaya, I.; Smirnov, K. | ||||
Title | Middle-infrared ultrafast superconducting single photon detector | Type | Conference Article | ||
Year | 2007 | Publication | 32nd IRMW / 15th ICTE | Abbreviated Journal | 32nd IRMW / 15th ICTE |
Volume | Issue | Pages | 115-116 | ||
Keywords | SSPD, SNSPD | ||||
Abstract | We present the results of the research on quantum efficiency of the ultrathin-film superconducting single-photon detectors (SSPD) in the wavelength rage from 1 mum to 5.7 mum. Reduction of operation temperature to 1.6 K allowed us to measure quantum efficiency of ~1 % at 5.7 mum wavelength with the SSPD made from 4-nm-thick NbN film. In a pursuit of further performance improvement we endeavored SSPD fabricating from 4-nm-thick MoRe film as an alternative material. The MoRe film exhibited transition temperature of 7.7K, critical current density at 4.2 K temperature was 1.1times10 6 A/cm 2 , and diffusivity 1.73 cmVs. The single-photon response was observed with MoRe SSPD at 1.3 mum wavelength with quantum efficiency estimated to be 0.04%. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1246 | |||
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Author | Korneev, A.; Minaeva, O.; Rubtsova, I.; Milostnaya, I.; Chulkova, G.; Voronov, B.; Smirnov, K.; Seleznev, V.; Gol'tsman, G.; Pearlman, A.; Slysz, W.; Cross, A.; Alvarez, P.; Verevkin, A.; Sobolewski, R. | ||||
Title | Superconducting single-photon ultrathin NbN film detector | Type | Journal Article | ||
Year | 2005 | Publication | Quantum Electronics | Abbreviated Journal | |
Volume | 35 | Issue | 8 | Pages | 698-700 |
Keywords | NbN SSPD, SNSPD | ||||
Abstract | Superconducting single-photon ultrathin NbN film detectors are studied. The development of manufacturing technology of detectors and the reduction of their operating temperature down to 2 K resulted in a considerable increase in their quantum efficiency, which reached in the visible region (at 0.56 μm) 30%—40%, i.e., achieved the limit determined by the absorption coefficient of the film. The quantum efficiency exponentially decreases with increasing wavelength, being equal to ~20% at 1.55 μm and ~0.02% at 5 μm. For the dark count rate of ~10-4s-1, the experimental equivalent noise power was 1.5×10-20 W Hz-1/2; it can be decreased in the future down to the record low value of 5×10-21 W Hz-1/2. The time resolution of the detector is 30 ps. | ||||
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Notes | Сверхпроводящий однофотонный детектор на основе ультратонкой пленки NbN | Approved | no | ||
Call Number | Serial | 383 | |||
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Author | Maslennikov, S.; Antipov, S.; Shishkov, A.; Svechnikov, S.; Voronov, B.; Smirnov, K.; Kaurova, N.; Drakinski, V.; Gol'tsman, G. | ||||
Title | NbN HEB mixer noise temperature measurements with hot/cold load mounted inside the helium cryostat at 300 GHz | Type | Conference Article | ||
Year | 2002 | Publication | Proc. Int. Student Seminar on Microwave Appl. of Novel Physical Phenomena supported by IEEE | Abbreviated Journal | |
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Publisher | LETI | Place of Publication | St.-Petersburg | Editor | |
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Notes | Approved | no | |||
Call Number | Serial | 324 | |||
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Author | Verevkin, A.; Zhang, J.; Sobolewski, Roman; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smirnov, K.; Gol'tsman, G. N.; Semenov, A. | ||||
Title | Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range | Type | Journal Article | ||
Year | 2002 | Publication | Appl. Phys. Lett. | Abbreviated Journal | |
Volume | 80 | Issue | 25 | Pages | 4687-4689 |
Keywords | NbN SSPD, SNSPD, QE | ||||
Abstract | We report our studies on spectral sensitivity of meander-type, superconducting NbN thin-film single-photon detectors (SPDs), characterized by GHz counting rates of visible and near-infrared photons and negligible dark counts. Our SPDs exhibit experimentally determined quantum efficiencies ranging from ∼0.2% at the 1.55 μm wavelength to ∼70% at 0.4 μm. Spectral dependences of the detection efficiency (DE) at the 0.4 to 3.0-μm-wavelength range are presented. The exponential character of the DE dependence on wavelength, as well as its dependence versus bias current, is qualitatively explained in terms of superconducting fluctuations in our ultrathin, submicron-width superconducting stripes. The DE values of large-active-area NbN SPDs in the visible range are high enough for modern quantum communications. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 331 | |||
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Author | Semenov, A. D.; Hübers, Heinz-Wilhelm; Richter, H.; Birk, M.; Krocka, M.; Mair, U.; Vachtomin, Yu. B.; Finkel, M. I.; Antipov, S. V.; Voronov, B. M.; Smirnov, K. V.; Kaurova, N. S.; Drakinski, V. N.; Gol'tsman, G. N. | ||||
Title | Superconducting hot-electron bolometer mixer for terahertz heterodyne receivers | Type | Journal Article | ||
Year | 2003 | Publication | IEEE Trans. Appl. Supercond. | Abbreviated Journal | |
Volume | 13 | Issue | 2 | Pages | 168-171 |
Keywords | NbN HEB mixers | ||||
Abstract | We present recent results showing the development of superconducting NbN hot-electron bolometer mixer for German receiver for astronomy at terahertz frequencies and terahertz limb sounder. The mixer is incorporated into a planar feed antenna, which has either logarithmic spiral or double-slot configuration, and backed on a silicon lens. The hybrid antenna had almost frequency independent and symmetric radiation pattern slightly broader than expected for a diffraction limited antenna. At 2.5 THz the best 2200 K double side-band receiver noise temperature was achieved across a 1 GHz intermediate frequency bandwidth centred at 1.5 GHz. For this operation regime, a receiver conversion efficiency of -17 dB was directly measured and the loss budget was evaluated. The mixer response was linear at load temperatures smaller than 400 K. Implementation of the MgO buffer layer on Si resulted in an increased 5.2 GHz gain bandwidth. The receiver was tested in the laboratory environment by measuring a methanol emission line at 2.5 THz. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 343 | |||
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Author | Ozhegov, R.; Morozov, D.; Maslennikov, S.; Okunev, O.; Smirnov, K.; Gol'tsman, G. | ||||
Title | Submillimeter wave range imaging system for registering human body radiation and finding out the things covered under clothes | Type | Conference Article | ||
Year | 2004 | Publication | Proc. 3rd Int. exhibition and conf. Non-Destructive Testing Equipment and Devices | Abbreviated Journal | |
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Publisher | Place of Publication | Moscow | Editor | ||
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Notes | Approved | no | |||
Call Number | Serial | 345 | |||
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Author | Ozhegov, R.; Maslennikov, S.; Morozov, D.; Okunev, O.; Smirnov, K.; Gol'tsman, G. | ||||
Title | Imaging system for submillimeter wave range | Type | Conference Article | ||
Year | 2004 | Publication | Proc. Tenth All-Russian sceintific conference of student-physicists and young sceintists (VNKSF-10) | Abbreviated Journal | |
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Publisher | Place of Publication | Moscow | Editor | ||
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Call Number | RPLAB @ s @ thzimaging_vnksf10_2004 | Serial | 347 | ||
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Author | Maslennikov, S.; Vachtomin, Yu.; Antipov, S.; Smirnov, K.; Kaurova, N.; Grishina, E.; Voronov, B.; Gol'tsman, G. | ||||
Title | NbN HEB mixers for frequencies of 2.5 and 3.8 THz | Type | Conference Article | ||
Year | 2004 | Publication | Proc. Tenth All-Russian sceintific conference of student-physicists and young sceintists (VNKSF-10) | Abbreviated Journal | |
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Publisher | Place of Publication | Moscow | Editor | ||
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Notes | Approved | no | |||
Call Number | RPLAB @ s @ qoheb_vnksf10_2004 | Serial | 349 | ||
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Author | Kaurova, N. S.; Finkel, M. I.; Maslennikov, S. N.; Vahtomin, Yu. B.; Antipov, S. V.; Smirnov, K. V.; Voronov, B. M.; Gol'tsman, G. N.; Ilyin, K. S. | ||||
Title | Submillimeter mixer based on YBa2Cu3O7-x thin film | Type | Conference Article | ||
Year | 2004 | Publication | Proc. 1-st conf. Fundamental problems of high temperature superconductivity | Abbreviated Journal | |
Volume | Issue | Pages | 291 | ||
Keywords | HTS, HEB mixer | ||||
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Address | Moscow-Zvenigorod | ||||
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Publisher | Place of Publication | Moscow-Zvenigorod | Editor | ||
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Notes | Approved | no | |||
Call Number | Serial | 355 | |||
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Author | Glejm, A. V.; Anisimov, A. A.; Asnis, L. N.; Vakhtomin, Yu. B.; Divochiy, A. V.; Egorov, V. I.; Kovalyuk, V. V.; Korneev, A. A.; Kynev, S. M.; Nazarov, Yu. V.; Ozhegov, R. V.; Rupasov, A. V.; Smirnov, K. V.; Smirnov, M. A.; Goltsman, G. N.; Kozlov, S. A. | ||||
Title | Quantum key distribution in an optical fiber at distances of up to 200 km and a bit rate of 180 bit/s | Type | Journal Article | ||
Year | 2014 | Publication | Bulletin of the Russian Academy of Sciences. Physics | Abbreviated Journal | |
Volume | 78 | Issue | 3 | Pages | 171-175 |
Keywords | SSPD, SNSPD, applications | ||||
Abstract | An experimental demonstration of a subcarrier-wave quantum cryptography system with superconducting single-photon detectors (SSPDs) that distributes a secure key in a single-mode fiber at distance of 25 km with a bit rate of 800 kbit/s, a distance of 100 km with a bit rate of 19 kbit/s, and a distance of 200 km with a bit rate of 0.18 kbit/s is described. | ||||
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ISSN | 1062-8738 | ISBN | Medium | ||
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Notes | Approved | no | |||
Call Number | RPLAB @ kovalyuk @ | Serial | 940 | ||
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Author | Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Gol'tsman, G. N. | ||||
Title | Infrared and terahertz detectors on basis of superconducting nanostructures | Type | Conference Article | ||
Year | 2010 | Publication | Microwave and Telecom. Technol. (CriMiCo), 20th Int. Crimean Conf. | Abbreviated Journal | |
Volume | Issue | Pages | 823-824 | ||
Keywords | SSPD, SNSPD, HEB | ||||
Abstract | Results of development of single-photon receiving systems of visible, infrared and terahertz range based on thin-film superconducting nanostructures are presented. The receiving systems are produced on the basis of superconducting nanostructures, which function by means of hot-electron phenomena. | ||||
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Publisher | Place of Publication | Editor | IEEE | ||
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Notes | Approved | no | |||
Call Number | RPLAB @ sasha @ smirnov2010infrared | Serial | 1025 | ||
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Author | Shcheslavskiy, V.; Morozov, P.; Divochiy, A.; Vakhtomin, Yu.; Smirnov, K.; Becker, W. | ||||
Title | Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector | Type | Journal Article | ||
Year | 2016 | Publication | Rev. Sci. Instrum. | Abbreviated Journal | |
Volume | 87 | Issue | Pages | 053117 (1 to 5) | |
Keywords | SSPD, SNSPD, TCSPC, jitter | ||||
Abstract | Time resolution is one of the main characteristics of the single photon detectors besides quantum efficiency and dark count rate. We demonstrate here an ultrafast time-correlated single photon counting (TCSPC) setup consisting of a newly developed single photon counting board SPC-150NX and a superconducting NbN single photon detector with a sensitive area of 7 × 7 μm. The combination delivers a record instrument response function with a full width at half maximum of 17.8 ps and system quantum efficiency ~5% at wavelength of 1560 nm. A calculation of the root mean square value of the timing jitter for channels with counts more than 1% of the peak value yielded about 7.6 ps. The setup has also good timing stability of the detector–TCSPC board. | ||||
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Notes | Approved | no | |||
Call Number | Serial | 1077 | |||
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Author | Zolotov, P.; Divochiy, A.; Vakhtomin, Y.; Moshkova, M.; Morozov, P.; Seleznev, V.; Smirnov, K. | ||||
Title | Photon-number-resolving SSPDs with system detection efficiency over 50% at telecom range | Type | Conference Article | ||
Year | 2018 | Publication | Proc. AIP Conf. | Abbreviated Journal | |
Volume | 1936 | Issue | 1 | Pages | 020019 |
Keywords | NbN PNR SSPD, SNSPD | ||||
Abstract | We used technology of making high-efficiency superconducting single-photon detectors as a basis for improvement of photon-number-resolving devices. By adding optical cavity and using an improved NbN superconducting film, we enhanced previously reported system detection efficiency at telecom range for such detectors. Our results show that implementation of optical cavity helps to develop four-section device with quantum efficiency over 50% at 1.55 µm. Performed experimental studies of detecting multi-photon optical pulses showed irregularities over defining multi-photon through single-photon quantum efficiency. | ||||
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Call Number | doi:10.1063/1.5025457 | Serial | 1231 | ||
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Author | Zolotov, P.; Vakhtomin, Yu.; Divochiy, A.; Seleznev, V.; Morozov, P.; Smirnov, K. | ||||
Title | High-efficiency single-photon detectors based on NbN films | Type | Miscellaneous | ||
Year | 2013 | Publication | Abbreviated Journal | ||
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Keywords | SSPD, SNSPD | ||||
Abstract | We present our resent results in development and testing of Superconducting Single-Photon Detectors (SSPD) with detection efficiencies greater than 85%. High values of obtained results are assigned to proposed design of the detector with integrated resonator structure, including two-layer optical cavity and anti-reflective coating (ARC). | ||||
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Call Number | Serial | 1254 | |||
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Author | Goltsman, G.; Korneev, A.; Izbenko, V.; Smirnov, K.; Kouminov, P.; Voronov, B.; Kaurova, N.; Verevkin, A.; Zhang, J.; Pearlman, A.; Slysz, W.; Sobolewski, R. | ||||
Title | Nano-structured superconducting single-photon detectors | Type | Journal Article | ||
Year | 2004 | Publication | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | Abbreviated Journal | |
Volume | 520 | Issue | 1-3 | Pages | 527-529 |
Keywords | NbN SSPD, SNSPD | ||||
Abstract | NbN detectors, formed into meander-type, 10×10-μm2 area structures, based on ultrathin (down to 3.5-nm thickness) and nanometer-width (down to below 100 nm) NbN films are capable of efficiently detecting and counting single photons from the ultraviolet to near-infrared optical wavelength range. Our best devices exhibit QE >15% in the visible range and ∼10% in the 1.3–1.5-μm infrared telecommunication window. The noise equivalent power (NEP) ranges from ∼10−17 W/Hz1/2 at 1.5 μm radiation to ∼10−19 W/Hz1/2 at 0.56 μm, and the dark counts are over two orders of magnitude lower than in any semiconducting competitors. The intrinsic response time is estimated to be <30 ps. Such ultrafast detector response enables a very high, GHz-rate real-time counting of single photons. Already established applications of NbN photon counters are non-invasive testing and debugging of VLSI Si CMOS circuits and quantum communications. | ||||
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ISSN | 0168-9002 | ISBN | Medium | ||
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Call Number | Serial | 1495 | |||
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