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Мошкова, М. А.; Дивочий, А. В.; Морозов, П. В.; Антипов, А. В.; Вахтомин, Ю. Б.; Смирнов, К. В. |
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Оценка статистики распределения фотонов с использованием многоэлементного сверхпроводникового однофотонного детектора |
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2019 |
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Межвузовская научно-техническая конференция студентов, аспирантов и молодых специалистов им. Е. В. Арменского |
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201-202 |
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SSPD |
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Проведен сравнительный анализ топологий сверхпроводниковых однофотонных детекторов с способностью к разрешению до четырёх фотонов в коротком импульсе ИК излучения. Получен детектор, с системной квантовой эффективностью ~85% на λ=1550 нм. Продемонстрирована возможность его использования для распределения числа фотонов импульсного источника излучения. |
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Москва |
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МИЭМ НИУ ВШЭ |
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Russian |
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1804 |
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Schroeder, E.; Mauskopf, P.; Pilyavsky, G.; Sinclair, A.; Smith, N.; Bryan, S.; Mani, H.; Morozov, D.; Berggren, K.; Zhu, D.; Smirnov, K.; Vakhtomin, Y. |
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On the measurement of intensity correlations from laboratory and astronomical sources with SPADs and SNSPDs |
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2016 |
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Proc. SPIE |
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Proc. SPIE |
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9907 |
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99070P (1 to 13) |
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SPAD, NbN SSPD applications, SNSPD |
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We describe the performance of detector modules containing silicon single photon avalanche photodiodes (SPADs) and superconducting nanowire single photon detectors (SNSPDs) to be used for intensity interferometry. The SPADs are mounted in fiber-coupled and free-space coupled packages. The SNSPDs are mounted in a small liquid helium cryostat coupled to single mode fiber optic cables which pass through a hermetic feed-through. The detectors are read out with microwave amplifiers and FPGA-based coincidence electronics. We present progress on measurements of intensity correlations from incoherent sources including gas-discharge lamps and stars with these detectors. From the measured laboratory performance of the correlation system, we estimate the sensitivity to intensity correlations from stars using commercial telescopes and larger existing research telescopes. |
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SPIE |
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Malbet, F.; Creech-Eakman, M.J.; Tuthill, P.G. |
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Optical and Infrared Interferometry and Imaging V |
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1809 |
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Zolotov, P. I.; Vakhtomin, Yu. B.; Divochiy, A. V.; Seleznev, V. A.; Smirnov, K. V. |
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Technology development of resonator-based structures for efficiency increasing of NBN detectors of IR single photons |
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2016 |
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Proc. 5th Int. Conf. Photonics and Information Optics |
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Proc. 5th Int. Conf. Photonics and Information Optics |
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115-116 |
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NbN SSPD |
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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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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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1811 |
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Корнеева, Ю. П.; Михайлов, М. М.; Манова, Н. Н.; Дивочий, А. А.; Корнеев, А. А.; Вахтомин, Ю. Б.; Першин, Ю. П.; Гольцман, Г. Н. |
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Сверхпроводниковый однофотонный детектор на основе аморфных пленок MoSi |
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2014 |
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Труды XVIII международного симпозиума «Нанофизика и наноэлектроника» |
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1 |
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53-54 |
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MoSi SSPD |
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Нами были изготовлены и исследованы однофотонные детекторы на основе сверхпроводящих пленок Mo x Si 1-x двух различных стехиометрий: Mo 3 Si и Mo 4 Si. При температуре 1.7 К лучшие детекторы площадью 7 мкм*7 мкм на основе этих пленок продемонстрировали системную квантовую эффективность 18% при скорости темнового счета 10 с -1 на длине волны 1.2 мкм с использованием неполяризованного источника, длительность импульса – 6 нс, джиттер – 120 пс. |
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Нижний Новгород, Россия |
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1836 |
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Feautrier, P.; le Coarer, E.; Espiau de Lamaestre, R.; Cavalier, P.; Maingault, L.; Villégier, J-C.; Frey, L.; Claudon, J.; Bergeard, N.; Tarkhov, M.; Poizat, J-P. |
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High-speed superconducting single photon detectors for innovative astronomical applications |
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2008 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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97 |
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10 |
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Superconducting Single Photon Detectors (SSPD) are now mature enough to provide extremely interesting detector performances in term of sensitivity, speed, and geometry in the visible and near infrared wavelengths. Taking advantage of recent results obtained in the Sinphonia project, the goal of our research is to demonstrate the feasibility of a new family of micro-spectrometers, called SWIFTS (Stationary Wave Integrated Fourier Transform Spectrometer), associated to an array of SSPD, the whole assembly being integrated on a monolithic sapphire substrate coupling the detectors array to a waveguide injecting the light. This unique association will create a major breakthrough in the domain of visible and infrared spectroscopy for all applications where the space and weight of the instrument is limited. SWIFTS is an innovative way to achieve very compact spectro-detectors using nano-detectors coupled to evanescent field of dielectric integrated optics. The system is sensitive to the interferogram inside the dielectric waveguide along the propagation path. Astronomical instruments will be the first application of such SSPD spectrometers. In this paper, we describes in details the fabrication process of our SSPD built at CEA/DRFMC using ultra-thin NbN epitaxial films deposited on different orientations of Sapphire substrates having state of the art superconducting characteristics. Electron beam lithography is routinely used for patterning the devices having line widths below 200 nm and down to 70 nm. An experimental set-up has been built and used to test these SSPD devices and evaluate their photon counting performances. Photon counting performances of our devices have been demonstrated with extremely low dark counts giving excellent signal to noise ratios. The extreme compactness of this concept is interesting for space spectroscopic applications. Some new astronomical applications of such concept are proposed in this paper. |
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