Records |
Author |
Симонов, Н. О.; Флоря, И. Н.; Корнеева, Ю. П.; Корнеев, А. А.; Гольцман, Г. Н. |
Title |
Однофотонный отклик в тонких сверхпроводящих MoNx пленках |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2018 |
Publication |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
Abbreviated Journal |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
Volume |
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Issue |
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Pages |
408-409 |
Keywords |
SSPD, SNSPD |
Abstract |
Продемонстрирован однофотонный отклик, при токе близком к критическому, в MoNx сверхпроводящих полосках шириной 70-104 нм. MoNx детекторы, имеющие коэффициент диффузии D≈0.32 см2/с и время электрон-фононного взаимодействия ηe-ph≈300 пс, достигают квантовой эффективности QE≈20% на длине волны λ=1550 нм. Возможность реализации однофотонного детектора в данном материале, подтверждает существующую теорию вихревого механизма возникновения фотоотклика в узких сверхпроводящих полосках. |
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978-5-7262-2445-9 |
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УДК 535(06)+004(06) |
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1251 |
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Author |
Золотов, Ф. И.; Дивочий, А. В.; Вахтомин, Ю. Б.; Пентин, И. В.; Морозов, П. В.; Селезнев, В. А.; Смирнов, К. В. |
Title |
Применение тонких сверхпроводниковых пленок нитрида ванадия для изготовления счетчиков одиночных ИК-фотонов |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2018 |
Publication |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
Abbreviated Journal |
Сборн. науч. труд. VII международн. конф. по фотонике и информац. опт. |
Volume |
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Issue |
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Pages |
60-61 |
Keywords |
VN SSPD, SNSPD |
Abstract |
Получены первые результаты по применению сверхпроводниковых пленок нитрида ванадия (VN) для детекторов одиночных фотонов ИК-диапазона. Изучение сверхпроводниковых однофотонных детекторов (SSPD), изготовленных на основе ультратонких (~5 нм) пленок VN, показало возможность создания устройств с близкой к насыщению зависимостью квантовой эффективности от тока смещения детекторов в телекоммуникационном диапазоне длин волн. Также нами были исследованы кинетическая индуктивность изготовленных структур с различной длиной сверхпроводниковой полоски и времена релаксации электронов в тонких сверхпроводниковых пленках VN. |
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978-5-7262-2445-9 |
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УДК 535(06)+004(06) |
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1252 |
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Zolotov, P.; Vakhtomin, Yu.; Divochiy, A.; Morozov, P.; Seleznev, V.; Smirnov, K |
Title |
Development of fast and high-effective single-photon detector for spectrum range up to 2.3 μm |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2017 |
Publication |
Proc. SPBOPEN |
Abbreviated Journal |
Proc. SPBOPEN |
Volume |
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Issue |
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Pages |
439-440 |
Keywords |
SSPD, SNSPD |
Abstract |
We present the results of development and testing of the single-photon-counting system operating in the wide spectrum rane up to 2.3 mcm. We managed to increase system detection efficiency up to 60% in the range of 1.7-2.3 mcm optimisation of the fabrication methods of superconducting single-photon detectors and application of the single-mode fiber with enlarged core diameter. |
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St. Petersburg, Russia |
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1255 |
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Author |
Simonov, N. O.; Korneeva, Y. P.; Korneev, A. A.; Goltsman, G. N. |
Title |
Enhance of the superconducting properties of the NbN/Au bilayer bridges |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2020 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1695 |
Issue |
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Pages |
012132 (1 to 4) |
Keywords |
SSPD, SNSPD |
Abstract |
We experimentally demonstrate strong temperature dependence of the critical current of the superconducting 600-nm-wide and 5-μm-long bridge made of NbN/Au bilayer. The result is achieved due to the proximity effect realized between the highly disordered superconducting NbN layer and low resistive normal-metal Au layer. |
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1742-6588 |
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1263 |
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Author |
Manova, N. N.; Smirnov, E. O.; Korneeva, Yu. P.; Korneev, A. A.; Goltsman, G. N. |
Title |
Superconducting photon counter for nanophotonics applications |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2019 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1410 |
Issue |
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Pages |
012147 (1 to 5) |
Keywords |
SSPD, SNSPD |
Abstract |
We develop large area superconducting single-photon detector SSPD with a micron-wide strip suitable for free-space coupling or packaging with multi-mode optical fibres. The detector sensitive area is 20 μm in diameter. In near infrared (1330 nm wavelength) our SSPD exhibits above 30% detection efficiency with low dark counts and 45 ps timing jitter. |
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1742-6588 |
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1271 |
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Author |
Polyakova, M. I.; Florya, I. N.; Semenov, A. V.; Korneev, A. A.; Goltsman, G. N. |
Title |
Extracting hot-spot correlation length from SNSPD tomography data |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2019 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
Volume |
1410 |
Issue |
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Pages |
012166 (1 to 4) |
Keywords |
SSPD, SNSPD, quantum detector tomography, QDT |
Abstract |
We present data of quantum detector tomography for the samples specifically optimized for this problem. Using this method, we take results of hot-spot correlation length of 17 ± 2 nm. |
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1742-6588 |
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1273 |
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Author |
Goltsman, G. |
Title |
Quantum-photonic integrated circuits |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2019 |
Publication |
Proc. IWQO |
Abbreviated Journal |
Proc. IWQO |
Volume |
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Pages |
22-23 |
Keywords |
WSSPD, waveguide SSPD, SNSPD, quantum optics, integrated optics, superconducting nanowire single-photon detector |
Abstract |
We show the design, a history of development as well as the most successful and promising approaches for QPICs realization based on hybrid nanophotonic-superconducting devices, where one of the key elements of such a circuit is a waveguide integrated superconducting single-photon detector (WSSPD). The potential of integration with fluorescent molecules is discussed also. |
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1287 |
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Author |
Elezov, M.; Scherbatenko, M.; Sych, D.; Goltsman, G.; Arakelyan, S.; Evlyukhin, A.; Kalachev, A.; Naumov, A. |
Title |
Towards the fiber-optic Kennedy quantum receiver |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2019 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
Volume |
220 |
Issue |
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Pages |
03011 (1 to 2) |
Keywords |
SSPD, SNSPD, Kennedy quantum receiver |
Abstract |
We consider practical aspects of using standard fiber-optic elements and superconducting nanowire single-photon detectors for the development of a practical quantum receiver based on the Kennedy scheme. Our receiver allows to discriminate two phase-modulated coherent states of light at a wavelength of 1.5 microns in continuous mode with bit rate 200 Kbit/s and error rate about two times below the standard quantum limit. |
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2100-014X |
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1288 |
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Author |
Baeva, E.; Sidorova, M.; Korneev, A.; Goltsman, G. |
Title |
Precise measurement of the thermal conductivity of superconductor |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2018 |
Publication |
Proc. AIP Conf. |
Abbreviated Journal |
Proc. AIP Conf. |
Volume |
1936 |
Issue |
1 |
Pages |
020003 (1 to 4) |
Keywords |
NbN SSPD, SNSPD |
Abstract |
Measuring the thermal properties such as the heat capacity provide information about intrinsic mechanisms operated inside. In general, the ratio between electron and phonon specific heat Ce/Cp shows how the absorbed energy shared between electron and phonon subsystems. In this work we make estimations for amplitude-modulated absorption of THz radiation technique for investigation of the ratio Ce/Cp in superconducting Niobium Nitride (NbN) at T = Tc. Our results indicates that experimentally the frequency of modulation has to be extra large to extract the quantity. We perform a new technique allowed to work at low frequency with accurately measurement of absorbed power. |
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doi:10.1063/1.5025441 |
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1311 |
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Author |
Sych, Denis; Shcherbatenko, Michael; Elezov, Michael; Goltsman, Gregory N. |
Title |
Towards the improvement of the heterodyne receiver sensitivity beyond the quantum noise limit |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2018 |
Publication |
Proc. 29th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 29th Int. Symp. Space Terahertz Technol. |
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Issue |
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Pages |
245-247 |
Keywords |
standard quantum limit, sub-SQL quantum receiver, Kennedy receiver, SSPD, SNSPD |
Abstract |
Noise reduction in heterodyne receivers of the terahertz range is an important issue for astronomical applications. Quantum fluctuations, also known as shot noise, prohibit errorless measurements of the amplitude of electro-magnetic waves, and introduce the so-called standard quantum limit (SQL) on the minimum error of the heterodyne measurements. Nowadays, the sensitivity of modern heterodyne receivers approaches the SQL, and the growing demand for the improvement of measurement precision stimulates a number of both theoretical and experimental efforts to design novel measurement techniques aimed at overcoming the SQL. Here we demonstrate the first steps towards the practical implementation of a sub-SQL quantum receiver. As the principal resources, it requires a highly efficient single-photon counting detector and an interferometer-based scheme for mixing the signal with a low-power local oscillator. We describe the idea of such receiver and its main components. |
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1314 |
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Korneeva, Y.; Vodolazov, D.; Florya, I.; Manova, N.; Smirnov, E.; Korneev, A.; Mikhailov, M.; Goltsman, G.; Klapwijk, T. M.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. |
Title |
Single photon detection in micron scale NbN and α-MoSi superconducting strips |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2018 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
Volume |
190 |
Issue |
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Pages |
04010 (1 to 2) |
Keywords |
SSPD |
Abstract |
We experimentally demonstrate the single photon detection in straight micrometer-wide NbN and α-MoSi bridges. Width of the bridges is 2 µm, while the wavelength of the photon changes from 408 to 1550 nm and critical current exceeds 50% of the depairing current. Obtained results offer the alternative route for design of detectors without resonator and meander structure and indirectly confirm vortex assisted mechanism of single photon detection. |
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2100-014X |
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1319 |
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Goltsman, G.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. |
Title |
Quantum photonic integrated circuits with waveguide integrated superconducting nanowire single-photon detectors |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2018 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
Volume |
190 |
Issue |
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Pages |
02004 (1 to 2) |
Keywords |
waveguide SSPD, SNSPD |
Abstract |
We show the design, a history of development as well as the most successful and promising approaches for QPICs realization based on hybrid nanophotonic-superconducting devices, where one of the key elements of such a circuit is a waveguide integrated superconducting single-photon detector (WSSPD). The potential of integration with fluorescent molecules is discussed also. |
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2100-014X |
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1320 |
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Goltsman, G. |
Title |
Superconducting thin film as infrared heterodyne and direct detectors |
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Conference Article |
Year |
2017 |
Publication |
16th ISEC |
Abbreviated Journal |
16th ISEC |
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1-3 |
Keywords |
optical waveguide SSPD, SNSPD |
Abstract |
We present our recent achievements in the development of superconducting nanowire single-photon detectors (SNSPDs) integrated with optical waveguides on a chip. We demonstrate both single-photon counting with up to 90% on-chip-quantum-efficiency (OCDE), and the heterodyne mixing with a close to the quantum limit sensitivity at the telecommunication wavelength using single device. |
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8314188 |
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1323 |
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Elezov, M. S.; Ozhegov, R. V.; Goltsman, G. N.; Makarov, V.; Vinogradov, E. A.; Naumov, A. V.; Gladush, M. G.; Karimullin, K. R. |
Title |
Development of the experimental setup for investigation of latching of superconducting single-photon detector caused by blinding attack on the quantum key distribution system |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2017 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
Volume |
132 |
Issue |
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Pages |
01004 (1 to 2) |
Keywords |
QKD, SSPD, SNSPD |
Abstract |
Recently bright-light control of the SSPD has been demonstrated. This attack employed a “backdoor” in the detector biasing scheme. Under bright-light illumination, SSPD becomes resistive and remains “latched” in the resistive state even when the light is switched off. While the SSPD is latched, Eve can simulate SSPD single-photon response by sending strong light pulses, thus deceiving Bob. We developed the experimental setup for investigation of a dependence on latching threshold of SSPD on optical pulse length and peak power. By knowing latching threshold it is possible to understand essential requirements for development countermeasures against blinding attack on quantum key distribution system with SSPDs. |
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2100-014X |
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1327 |
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Kurochkin, V. L.; Zverev, A. V.; Kurochkin, Y. V.; Ryabtsev, I. I.; Neizvestnyi, I. G.; Ozhegov, R. V.; Gol’tsman, G. N.; Larionov, P. A. |
Title |
Long-distance fiber-optic quantum key distribution using superconducting detectors |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Conference Article |
Year |
2015 |
Publication |
Proc. Optoelectron. Instrum. |
Abbreviated Journal |
Proc. Optoelectron. Instrum. |
Volume |
51 |
Issue |
6 |
Pages |
548-552 |
Keywords |
QKD, SSPD, SNSPD |
Abstract |
This paper presents the results of experimental studies on quantum key distribution in optical fiber using superconducting detectors. Key generation was obtained on an experimental setup based on a self-compensation optical circuit with an optical fiber length of 101.1 km. It was first shown that photon polarization encoding can be used for quantum key distribution in optical fiber over a distance in excess of 300 km. |
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8756-6990 |
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1342 |
Permanent link to this record |