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Author |
Korneev, A.; Minaeva, O.; Divochiy, A.; Antipov, A.; Kaurova, N.; Seleznev, V.; Voronov, B.; Gol’tsman, G.; Pan, D.; Kitaygorsky, J.; Slysz, W.; Sobolewski, R. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Ultrafast and high quantum efficiency large-area superconducting single-photon detectors |
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Conference Article |
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Year |
2007 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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Volume |
6583 |
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65830I (1 to 9) |
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SSPD, SNSPD, superconducting NbN films, infrared single-photon detectors |
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We present our latest generation of superconducting single-photon detectors (SSPDs) patterned from 4-nm-thick NbN films, as meander-shaped 0.5-mm-long and 100-nm-wide stripes. The SSPDs exhibit excellent performance parameters in the visible-to-near-infrared radiation wavelengths: quantum efficiency (QE) of our best devices approaches a saturation level of 30% even at 4.2 K (limited by the NbN film optical absorption) and dark counts as low as 2x10-4 Hz. The presented SSPDs were designed to maintain the QE of large-active-area devices, but, unless our earlier SSPDs, hampered by a significant kinetic inductance and a nanosecond response time, they are characterized by a low inductance and GHz counting rates. We have designed, simulated, and tested the structures consisting of several, connected in parallel, meander sections, each having a resistor connected in series. Such new, multi-element geometry led to a significant decrease of the device kinetic inductance without the decrease of its active area and QE. The presented improvement in the SSPD performance makes our detectors most attractive for high-speed quantum communications and quantum cryptography applications. |
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Spie |
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Dusek, M.; Hillery, M.S.; Schleich, W.P.; Prochazka, I.; Migdall, A.L.; Pauchard, A. |
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1249 |
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Симонов, Н. О.; Флоря, И. Н.; Корнеева, Ю. П.; Корнеев, А. А.; Гольцман, Г. Н. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
Однофотонный отклик в тонких сверхпроводящих MoNx пленках |
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Conference Article |
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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. |
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408-409 |
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SSPD, SNSPD |
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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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Золотов, Ф. И.; Дивочий, А. В.; Вахтомин, Ю. Б.; Пентин, И. В.; Морозов, П. В.; Селезнев, В. А.; Смирнов, К. В. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
Применение тонких сверхпроводниковых пленок нитрида ванадия для изготовления счетчиков одиночных ИК-фотонов |
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Conference Article |
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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. |
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60-61 |
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VN SSPD, SNSPD |
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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.; Seleznev, V.; Morozov, P.; Smirnov, K. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
High-efficiency single-photon detectors based on NbN films |
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Miscellaneous |
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2013 |
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SSPD, SNSPD |
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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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Poster |
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no |
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1254 |
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Simonov, N. O.; Korneeva, Y. P.; Korneev, A. A.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Enhance of the superconducting properties of the NbN/Au bilayer bridges |
Type |
Conference Article |
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Year |
2020 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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1695 |
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012132 (1 to 4) |
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SSPD, SNSPD |
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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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Elezov, M. S.; Shcherbatenko, M. L.; Sych, D. V.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Development of control method for an optimal quantum receiver |
Type |
Conference Article |
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2020 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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1695 |
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012126 |
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Helstrom bound, SPD, single photon detector, below quantum limit |
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We propose a method for optimal displacement controlling of an optimal quantum receiver for registrations a binary coherent signal. An optimal receiver is able to distinguish between two phase-modulated states of a coherent signal. The optimal receiver controlling method can be used later in practice in various physical implementations of the optimal receiver. |
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1742-6588 |
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1264 |
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Shcherbatenko, M.; Elezov, M.; Sych, D.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Optimal fiber optic scheme for sub-SQL quantum receiver realization |
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Conference Article |
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2020 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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1695 |
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012140 |
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sub-SQL, below quantum limit, QL, system quantum limit, SQL |
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Practical implementation of high-precision quantum measurements is an important problem in modern science. One of the main parts of the quantum receiver is the optical scheme. We developed and tested several optical circuits based on different types of interferometers, namely Sagnac-based scheme, Mach-Zehnder-based scheme, and Michelson-based scheme. All these schemes are assembled with optical fibers and fiber-optic components, since the fiber-optic implementation is closest to application in practical devices. Schemes were evaluated according to two main criteria: extinction and interference stability. On the basis of the obtained data, it can be concluded that the most suitable is the scheme based on the Mach-Zehnder interferometer. In continuous mode, we were able to obtain an interference extinction about 30 dB with acceptable temporal stability. |
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1265 |
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Titova, N.; Gayduchenko, I. A.; Moskotin, M. V.; Fedorov, G. F.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Carbon nanotube based terahertz radiation detectors |
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Conference Article |
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Year |
2019 |
Publication |
J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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Volume |
1410 |
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012208 (1 to 5) |
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carbon nanotubes, CNT |
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In this paper, we study terahertz detectors based on single quasimetallic carbon nanotubes (CNT) with asymmetric contacts and different metal pairs. We demonstrate that, depending on the contact metallization of the device, various detection mechanisms are manifested. |
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1742-6588 |
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1270 |
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Manova, N. N.; Smirnov, E. O.; Korneeva, Yu. P.; Korneev, A. A.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Superconducting photon counter for nanophotonics applications |
Type |
Conference Article |
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2019 |
Publication |
J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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1410 |
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012147 (1 to 5) |
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SSPD, SNSPD |
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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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1271 |
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Baksheeva, K.; Vdovydchenko, A.; Gorshkov, K.; Ozhegov, R.; Kinev, N.; Koshelets, V.; Goltsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Study of human skin radiation in the terahertz frequency range |
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Conference Article |
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2019 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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1410 |
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012076 (1 to 5) |
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SIS mixer, SIR, applications, medicine, sympathetic nervous system, SNS |
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The radiation of human skin in the terahertz frequency range under the influence of mental stresses has been studied in the current work. An experimental setup for observation of changes in human skin radiation, which occur under the influence of psychological stresses, by means of a superconducting integrated receiver has been developed. More than 30 volunteers participate in these studies, which allows us to verify presence of correlation between the signals from the superconducting integrated terahertz receiver and other sensors that monitor human mental stress. |
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