Records |
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. |
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SPIE |
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Editor |
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 |
Serial |
1048 |
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Author |
Minaeva, O.; Fraine, A.; Korneev, A.; Divochiy, A.; Goltsman, G.; Sergienko, A. |
Title |
High resolution optical time-domain reflectometry using superconducting single-photon detectors |
Type |
Conference Article |
Year |
2012 |
Publication |
Frontiers in Opt. 2012/Laser Sci. XXVIII |
Abbreviated Journal |
Frontiers in Opt. 2012/Laser Sci. XXVIII |
Volume |
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Issue |
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Pages |
Fw3a.39 |
Keywords |
SSPD, SNSPD, Photodetectors; Fiber characterization; Light beams; Optical time domain reflectometry; Photon counting; Single mode fibers; Single photon detectors; Superconductors |
Abstract |
We discuss the advantages and limitations of single-photon optical time-domain reflectometry with superconducting single-photon detectors. The higher two-point resolution can be achieved due to superior timing performance of SSPDs in comparison with InGaAs APDs. |
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Optical Society of America |
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no |
Call Number |
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Serial |
1237 |
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Author |
Divochiy, A.; Misiaszek, M.; Vakhtomin, Y.; Morozov, P.; Smirnov, K.; Zolotov, P.; Kolenderski, P. |
Title |
Single photon detection system for visible and infrared spectrum range |
Type |
Journal Article |
Year |
2018 |
Publication |
Opt. Lett. |
Abbreviated Journal |
Opt. Lett. |
Volume |
43 |
Issue |
24 |
Pages |
6085-6088 |
Keywords |
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Abstract |
We demonstrate niobium nitride based superconducting single-photon detectors sensitive in the spectral range 452-2300 nm. The system performance was tested in a real-life experiment with correlated photons generated by means of spontaneous parametric downconversion, where one photon was in the visible range and the other was in the infrared range. We measured a signal to noise ratio as high as 4x10(4) in our detection setting. A photon detection efficiency as high as 64% at 1550 nm and 15% at 2300 nm was observed. |
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English |
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0146-9592 |
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https://arxiv.org/abs/1807.04273 |
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Serial |
1227 |
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Author |
Marsili, F.; Bitauld, D.; Divochiy, A.; Gaggero, A.; Leoni, R.; Mattioli, F.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Gol’tsman, G.; Lagoudakis, K.G.; Benkahoul, M.; Lévy, F.; Fiore, A. |
Title |
Superconducting nanowire photon number resolving detector at telecom wavelength |
Type |
Conference Article |
Year |
2008 |
Publication |
CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
Volume |
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Issue |
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Pages |
Qmj1 (1 to 2) |
Keywords |
PNR SSPD; SNSPD; Detectors; Infrared; Low light level; Diode lasers; Photons; Scanning electron microscopy; Superconductors; Ti:sapphire lasers |
Abstract |
We demonstrate a photon-number-resolving (PNR) detector, based on parallel superconducting nanowires, capable of resolving up to 5 photons in the telecommunication wavelength range, with sensitivity and speed far exceeding existing approaches. |
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Publisher |
Optical Society of America |
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ISBN |
978-1-55752-859-9 |
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no |
Call Number |
Marsili:08 |
Serial |
1243 |
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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 |
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Volume |
87 |
Issue |
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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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no |
Call Number |
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Serial |
1077 |
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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 |
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Issue |
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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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Russian |
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978-5-7262-2215-8 |
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http://fioconf.mephi.ru/files/2015/12/FIO2016-Sbornik.pdf Разработка технологии создания резонаторных структур для увеличения квантовой эффективности NBN детекторов ИК-фотонов |
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no |
Call Number |
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Serial |
1811 |
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Author |
Morozov, P.; Lukina, M.; Shirmanova, M.; Divochiy, A.; Dudenkova, V.; Gol'tsman, G. N.; Becker, W.; Shcheslavskiy, V. I. |
Title |
Singlet oxygen phosphorescence imaging by superconducting single-photon detector and time-correlated single-photon counting |
Type |
Journal Article |
Year |
2021 |
Publication |
Opt. Lett. |
Abbreviated Journal |
Opt. Lett. |
Volume |
46 |
Issue |
6 |
Pages |
1217-1220 |
Keywords |
SSPD, SNSPD, applications |
Abstract |
This Letter presents, to the best of our knowledge, a novel optical configuration for direct time-resolved measurements of luminescence from singlet oxygen, both in solutions and from cultured cells on photodynamic therapy. The system is based on the superconducting single-photon detector, coupled to the confocal scanner that is modified for the near-infrared measurements. The recording of a phosphorescence signal from singlet oxygen at 1270 nm has been done using time-correlated single-photon counting. The performance of the system is verified by measuring phosphorescence from singlet oxygen generated by the photosensitizers commonly used in photodynamic therapy: methylene blue and chlorin e6. The described system can be easily upgraded to the configuration when both phosphorescence from singlet oxygen and fluorescence from the cells can be detected in the imaging mode. Thus, co-localization of the signal from singlet oxygen with the areas inside the cells can be done. |
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English |
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ISSN |
0146-9592 |
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Notes |
PMID:33720151 |
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no |
Call Number |
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Serial |
1221 |
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Author |
Moshkova, M.; Divochiy, A.; Morozov, P.; Vakhtomin, Y.; Antipov, A.; Zolotov, P.; Seleznev, V.; Ahmetov, M.; Smirnov, K. |
Title |
High-performance superconducting photon-number-resolving detectors with 86% system efficiency at telecom range |
Type |
Journal Article |
Year |
2019 |
Publication |
J. Opt. Soc. Am. B |
Abbreviated Journal |
J. Opt. Soc. Am. B |
Volume |
36 |
Issue |
3 |
Pages |
B20 |
Keywords |
NbN PNR SSPD, SNSPD |
Abstract |
The use of improved fabrication technology, highly disordered NbN thin films, and intertwined section topology makes it possible to create high-performance photon-number-resolving superconducting single-photon detectors (PNR SSPDs) that are comparable to conventional single-element SSPDs at the telecom range. The developed four-section PNR SSPD has simultaneously an 86±3% system detection efficiency, 35 cps dark count rate, ∼2 ns dead time, and maximum 90 ps jitter. An investigation of the PNR SSPD’s detection efficiency for multiphoton events shows good uniformity across sections. As a result, such a PNR SSPD is a good candidate for retrieving the photon statistics for light sources and quantum key distribution systems. |
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ISSN |
0740-3224 |
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no |
Call Number |
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Serial |
1225 |
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Author |
Goltsman, G.; Korneev, A.; Divochiy, A.; Minaeva, O.; Tarkhov, M.; Kaurova, N.; Seleznev, V.; Voronov, B.; Okunev, O.; Antipov, A.; Smirnov, K.; Vachtomin, Yu.; Milostnaya, I.; Chulkova, G. |
Title |
Ultrafast superconducting single-photon detector |
Type |
Journal Article |
Year |
2009 |
Publication |
J. Modern Opt. |
Abbreviated Journal |
J. Modern Opt. |
Volume |
56 |
Issue |
15 |
Pages |
1670-1680 |
Keywords |
SSPD, SNSPD |
Abstract |
The state-of-the-art of the NbN nanowire superconducting single-photon detector technology (SSPD) is presented. The SSPDs exhibit excellent performance at 2 K temperature: 30% quantum efficiency from visible to infrared, negligible dark count rate, single-photon sensitivity up to 5.6 µm. The recent achievements in the development of GHz counting rate devices with photon-number resolving capability is presented. |
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ISSN |
0950-0340 |
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no |
Call Number |
RPLAB @ akorneev @ |
Serial |
607 |
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Author |
Romanov, N. R.; Zolotov, P. I.; Vakhtomin, Y. B.; Divochiy, A. V.; Smirnov, K. V. |
Title |
Electron diffusivity measurements of VN superconducting single-photon detectors |
Type |
Conference Article |
Year |
2018 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1124 |
Issue |
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Pages |
051032 |
Keywords |
SSPD, SNSPD, VN |
Abstract |
The research of ultrathin vanadium nitride (VN) films as a promising candidate for superconducting single-photon detectors (SSPD) is presented. The electron diffusivity measurements are performed for such devices. Devices that were fabricated out from 9.9 nm films had diffusivity coefficient of 0.41 cm2/s and from 5.4 nm – 0.54 cm2/s. Obtained values are similar to other typical SSPD materials. The diffusivity that increases along with decreasing of the film thickness is expected to allow fabrication of the devices with improved characteristics. Fabricated VN SSPDs showed prominent single-photon response in the range 0.9-1.55 µm. |
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1742-6588 |
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no |
Call Number |
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Serial |
1229 |
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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 |
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Abstract |
Year |
2009 |
Publication |
Proc. Progress In Electromagnetics Research Symp. |
Abbreviated Journal |
Proc. Progress In Electromagnetics Research Symp. |
Volume |
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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 |
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RPLAB @ sasha @ smirnovsession |
Serial |
1050 |
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Author |
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 |
Volume |
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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 |
Place of Publication |
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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no |
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RPLAB @ sasha @ ozhegovultrafast |
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1022 |
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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 |
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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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0953-2048 |
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no |
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1232 |
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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 |
Year |
2010 |
Publication |
Microwave and Telecom. Technol. (CriMiCo), 20th Int. Crimean Conf. |
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Volume |
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Issue |
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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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IEEE |
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RPLAB @ sasha @ smirnov2010infrared |
Serial |
1025 |
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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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