| Records |
| Author |
Korneev, A. A.; Korneeva, Y. P.; Mikhailov, M. Yu.; Pershin, Y. P.; Semenov, A. V.; Vodolazov, D. Yu.; Divochiy, A. V.; Vakhtomin, Y. B.; Smirnov, K. V.; Sivakov, A. G.; Devizenko, A. Yu.; Goltsman, G. N. |
| Title |
Characterization of MoSi superconducting single-photon detectors in the magnetic field |
Type |
Journal Article |
| Year |
2015 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
| Volume |
25 |
Issue |
3 |
Pages |
2200504 (1 to 4) |
| Keywords |
SSPD, SNSPD |
| Abstract |
We investigate the response mechanism of nanowire superconducting single-photon detectors (SSPDs) made of amorphous MoxSi1-x. We study the dependence of photon count and dark count rates on bias current in magnetic fields up to 113 mT at 1.7 K temperature. The observed behavior of photon counts is similar to the one recently observed in NbN SSPDs. Our results show that the detecting mechanism of relatively high-energy photons does not involve the vortex penetration from the edges of the film, and on the contrary, the detecting mechanism of low-energy photons probably involves the vortex penetration from the film edges. |
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RPLAB @ akorneev @ KorneevIEEE2015 |
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991 |
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Ozhegov, R. V.; Gorshkov, K. N.; Vachtomin, Y. B.; Smirnov, K. V.; Finkel, M. I.; Goltsman, G. N.; Kiselev, O. S.; Kinev, N. V.; Filippenko, L. V.; Koshelets, V. P. |
| Title |
Terahertz imaging system based on superconducting heterodyne integrated receiver |
Type |
Conference Article |
| Year |
2014 |
Publication |
Proc. THz and Security Applications |
Abbreviated Journal |
Proc. THz and Security Applications |
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Issue |
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Pages |
113-125 |
| Keywords |
SIS mixer, SIR, THz imaging |
| Abstract |
The development of terahertz imaging instruments for security systems is on the cutting edge of terahertz technology. We are developing a THz imaging system based on a superconducting integrated receiver (SIR). An SIR is a new type of heterodyne receiver based on an SIS mixer integrated with a flux-flow oscillator (FFO) and a harmonic mixer which is used for phase-locking the FFO. Employing an SIR in an imaging system means building an entirely new instrument with many advantages compared to traditional systems.
In this project we propose a prototype THz imaging system using an 1 pixel SIR and 2D scanner. At a local oscillator frequency of 500 GHz the best noise equivalent temperature difference (NETD) of the SIR is 10 mK at an integration time of 1 s and a detection bandwidth of 4 GHz. The scanner consists of two rotating flat mirrors placed in front of the antenna consisting of a spherical primary reflector and an aspherical secondary reflector. The diameter of the primary reflector is 0.3 m. The operating frequency of the imaging system is 600 GHz, the frame rate is 0.1 FPS, the scanning area is 0.5 × 0.5 m2, the image resolution is 50 × 50 pixels, the distance from an object to the scanner was 3 m. We have obtained THz images with a spatial resolution of 8 mm and a NETD of less than 2 K. |
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Springer Netherlands |
Place of Publication |
Dordrecht |
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Corsi, C.; Sizov, F. |
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978-94-017-8828-1 |
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no |
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1368 |
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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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RPLAB @ akorneev @ KorneevIEEE2013 |
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996 |
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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 |
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Conference Article |
| Year |
2007 |
Publication |
32nd IRMW / 15th ICTE |
Abbreviated Journal |
32nd IRMW / 15th ICTE |
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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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1246 |
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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 |
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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 |
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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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0003-6951 |
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no |
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1238 |
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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 |
New advanced generation of superconducting NbN-nanowire single-photon detectors capable of photon number resolving |
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Conference Article |
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2008 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
| Volume |
97 |
Issue |
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Pages |
012307 (1 to 6) |
| Keywords |
PNR SSPD; SNSPD |
| Abstract |
We present our latest generation of ultrafast superconducting NbN single-photon detectors (SSPD) capable of photon-number resolving (PNR). We have developed, fabricated and tested a multi-sectional design of NbN nanowire structures. The novel SSPD structures consist of several meander sections connected in parallel, each having a resistor connected in series. The novel SSPDs combine 10 μm × 10 μm active areas with a low kinetic inductance and PNR capability. That resulted in a 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 performances of the PNR SSPDs. The PNR SSPDs are perfectly suited for fibreless free-space telecommunications, as well as for ultrafast quantum cryptography and quantum computing. |
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1742-6596 |
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no |
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1245 |
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Ozhegov, R. V.; Smirnov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V.; Divochiy, A. V.; Goltsman, G. N. |
| Title |
Ultrafast superconducting bolometer receivers for terahertz applications |
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Abstract |
| Year |
2009 |
Publication |
Proc. PIERS |
Abbreviated Journal |
Proc. PIERS |
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Issue |
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Pages |
867 |
| Keywords |
HEB |
| 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 of detectors and their use both in fundamental and applied studies. In this paper, we present the results of testing the terahertz HEB receiver systems based on ultrathin (∼ 4 nm) NbN and MoRe detectors with a response time of 50 ps and 1 ns, respectively. We have developed three types of devices which differ in the way a terahertz signal is coupled to the detector and cover the following ranges: 0.3–3 THz, 0.1–30 THz and 25–70 THz. In the case of the receiving system optimized for 0.3–3 THz, the sensitive element (a strip of asuperconductor with planar dimensions of 0.2μm (length) by 1.7μm (width)) was integrated witha planar broadband log-spiral antenna. For additional focusing ofthe incident radiation a silicon hyperhemispherical lens was used. For the 0.1–30 THz receivingsystem, the sensitive element was patterned as parallel strips(2μm wide each) filling an area of 500×500μm2with a filling factor of 0.5. In the receivingsystem of this type we used direct coupling of the incident radiation to the sensitive element. Inthe 25–70 THz range (detector type 2/2a in Table 1) we used a square-shaped superconductingdetector with planar dimensions of 10×10μm2. Incident radiation was coupled to the detectorwith the use of a germanium hyperhemispherical lens.The response time of the above receiving systems is determined by the cooling rate of the hotelectrons in the film. That depends on the electron-phonon interaction time, which is less forultrathin NbN than in MoRe. |
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Moscow, Russia |
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The Electromagnetics Academy |
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777 Concord Avenue, Suite 207 Cambridge, MA 02138 |
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1559-9450 |
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978-1-934142-09-7 |
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RPLAB @ sasha @ ozhegovultrafast |
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1022 |
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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 |
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Conference Article |
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2010 |
Publication |
Microwave and Telecom. Technol. (CriMiCo), 20th Int. Crimean Conf. |
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823-824 |
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SSPD, SNSPD, HEB |
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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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IEEE |
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RPLAB @ sasha @ smirnov2010infrared |
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1025 |
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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 |
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Conference Article |
| Year |
2008 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
7138 |
Issue |
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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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Spie |
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Tománek, P.; Senderáková, D.; Hrabovský, M. |
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10.1117/12.818079 |
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1241 |
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Milostnaya, I.; Korneev, A.; Tarkhov, M.; Divochiy, A.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Okunev, O.; Chulkova, G.; Smirnov, K.; Gol’tsman, G. |
| Title |
Superconducting single photon nanowire detectors development for IR and THz applications |
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Journal Article |
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2008 |
Publication |
J. Low Temp. Phys. |
Abbreviated Journal |
J. Low Temp. Phys. |
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151 |
Issue |
1-2 |
Pages |
591-596 |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
We present our progress in the development of superconducting single-photon detectors (SSPDs) based on meander-shaped nanowires made from few-nm-thick superconducting films. The SSPDs are operated at a temperature of 2–4.2 K (well below T c ) being biased with a current very close to the nanowire critical current at the operation temperature. To date, the material of choice for SSPDs is niobium nitride (NbN). Developed NbN SSPDs are capable of single photon counting in the range from VIS to mid-IR (up to 6 μm) with a record low dark counts rate and record-high counting rate. The use of a material with a low transition temperature should shift the detectors sensitivity towards longer wavelengths. We present state-of-the art NbN SSPDs as well as the results of our recent approach to expand the developed SSPD technology by the use of superconducting materials with lower T c , such as molybdenum rhenium (MoRe). MoRe SSPDs first were made and tested; a single photon response was obtained. |
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0022-2291 |
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1244 |
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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 |
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Journal Article |
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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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IOP Publishing |
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0953-2048 |
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RPLAB @ sasha @ korneeva2014superconducting |
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1044 |
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Ozhegov, R.; Elezov, M.; Kurochkin, Y.; Kurochkin, V.; Divochiy, A.; Kovalyuk, V.; Vachtomin, Y.; Smirnov, K.; Goltsman, G. |
| Title |
Quantum key distribution over 300 |
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Conference Article |
| Year |
2014 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
9440 |
Issue |
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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. |
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SPIE |
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Orlikovsky, A. A. |
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International Conference on Micro- and Nano-Electronics |
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no |
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RPLAB @ sasha @ ozhegov2014quantum |
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1048 |
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Smirnov, Konstantin; Vachtomin, Yury; Divochiy, Alexander; Antipov, Andrey; Goltsman, Gregory |
| Title |
Dependence of dark count rates in superconducting single photon detectors on the filtering effect of standard single mode optical fibers |
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Journal Article |
| Year |
2015 |
Publication |
Appl. Phys. Express |
Abbreviated Journal |
Appl. Phys. Express |
| Volume |
8 |
Issue |
2 |
Pages |
022501 (1 to 4) |
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IOP Publishing |
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RPLAB @ sasha @ smirnov2015dependence |
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1049 |
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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. |
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Issue |
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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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Moscow, Russia |
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no |
| Call Number |
RPLAB @ sasha @ smirnovsession |
Serial |
1050 |
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| Author |
Sidorova, Maria V.; Divochiy, Alexander; Vakhtomin, Yury B.; Smirnov, Konstantin V. |
| Title |
Ultrafast superconducting single-photon detector with reduced-size active area coupled to a tapered lensed single-mode fiber |
Type |
Conference Article |
| Year |
2015 |
Publication |
Proc. SPIE |
Abbreviated Journal |
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| Volume |
9504 |
Issue |
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Pages |
950408 (1 to 9) |
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International Society for Optics and Photonics |
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no |
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RPLAB @ sasha @ sidorova2015ultrafast |
Serial |
1051 |
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