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Vasilev, D. D.; Malevannaya, E. I.; Moiseev, K. M.; Zolotov, P. I.; Antipov, A. V.; Vakhtomin, Y. B.; Smirnov, K. V. |
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Title |
Influence of deposited material energy on superconducting properties of the WSi films |
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Conference Article |
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Year |
2020 |
Publication |
IOP Conf. Ser.: Mater. Sci. Eng. |
Abbreviated Journal |
IOP Conf. Ser.: Mater. Sci. Eng. |
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Volume |
781 |
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012013 (1 to 6) |
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WSi SSPD, SNSPD |
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WSi thin films have the advantages for creating SNSPDs with a large active area or array of detectors on a single substrate due to the amorphous structure. The superconducting properties of ultrathin WSi films substantially depends on their structure and thickness as the NbN films. Scientific groups investigating WSi films mainly focused only on changes of their thickness and the ratio of the components on the substrate at room temperature. This paper presents experiments to determine the effect of the bias potential on the substrate, the temperature of the substrate, and the peak power of pulsed magnetron sputtering, which is the equivalent of ionization, a tungsten target, on the surface resistance and superconducting properties of the WSi ultrathin films. The negative effect of the substrate temperature and the positive effect of the bias potential and the ionization coefficient (peak current) allow one to choose the best WSi films formation mode for SNSPD: substrate temperature 297 K, bias potential -60 V, and peak current 3.5 A. |
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1757-899X |
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1798 |
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Antipov, A. V.; Seleznev, V. A.; Vakhtomin, Y. B.; Morozov, P. V.; Vasilev, D. D.; Malevannaya, E. I.; Moiseev, K. M.; Smirnov, K. |
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Title |
Investigation of WSi and NbN superconducting single-photon detectors in mid-IR range |
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Conference Article |
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Year |
2020 |
Publication |
IOP Conf. Ser.: Mater. Sci. Eng. |
Abbreviated Journal |
IOP Conf. Ser.: Mater. Sci. Eng. |
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781 |
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012011 (1 to 5) |
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WSi, NbN SSPD, SNSPD |
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Spectral characteristics of WSi and NbN superconducting single-photon detectors with different surface resistance and width of nanowire strips have been investigated in the wavelength range of 1.3-2.5 μm. WSi structures with narrower strips demonstrated better performance for detection of single photons in longer wavelength range. The difference in normalized photon count rate for such structures reaches one order of magnitude higher in comparison with structures based on NbN thin films at 2.5 μm. |
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1757-899X |
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1799 |
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Romanov, N. R.; Zolotov, P. I.; Smirnov, K. V. |
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Title |
Development of disordered ultra-thin superconducting vanadium nitride films |
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Conference Article |
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Year |
2019 |
Publication |
Proc. 8th Int. Conf. Photonics and Information Optics |
Abbreviated Journal |
Proc. 8th Int. Conf. Photonics and Information Optics |
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425-426 |
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VN films |
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We present the results of development and research of superconducting vanadium nitride VN films ~10 nm thick having different level of disorder. It is showed that both silicon substrate temperature T sub in process of magnetron sputtering and total gas pressure P affect superconducting transition temperature of sputtered films and R 300 /R 20 ratio defining their level of disorder. VN films suitable for development of superconducting single-photon detectors on their basis are obtained. |
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Russian |
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978-5-7262-2536-4 |
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http://fioconf.mephi.ru/files/2018/12/FIO2019-Sbornik.pdf |
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1802 |
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Moshkova, M. A.; Divochiy, A. V.; Morozov, P. V.; Antipov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
Characterization of topologies of superconducting photon number resolving detectors |
Type |
Conference Article |
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Year |
2019 |
Publication |
Proc. 8th Int. Conf. Photonics and Information Optics |
Abbreviated Journal |
Proc. 8th Int. Conf. Photonics and Information Optics |
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465-466 |
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PNR SSPD |
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Comparative analysis for different topologies of superconducting single-photon detectors with ability to resolve up to 4 photons in a short pulse of IR radiation has been carry out. It was developed the detector with a system detection efficiency of ~ 85 % at λ = 1550 nm. The possibility of using such detector to restore photon statistics of a pulsed radiation source was demonstrated. |
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Russian |
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978-5-7262-2536-4 |
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http://fioconf.mephi.ru/files/2018/12/FIO2019-Sbornik.pdf |
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1803 |
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Kuznetsov, K. A.; Kornienko, V. V.; Vakhtomin, Y. B.; Pentin, I. V.; Smirnov, K. V.; Kitaeva, G. K. |
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Title |
Generation and detection of optical-terahertz biphotons via spontaneous parametric downconversion |
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Conference Article |
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Year |
2018 |
Publication |
Proc. ICLO |
Abbreviated Journal |
Proc. ICLO |
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303 |
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Keywords |
NbN HEB applications |
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We study spontaneous parametric downconversion (SPDC) in the strongly non-degenerate regime when the idler wave hits the terahertz range. By using the hot-electron bolometer, for the first time the SPDC-generated idler-wave photons were directly detected in the terahertz frequency range. Spectrum of corresponding signal photons was measured using standard technique by the CCD camera. Possible applications of correlated optical-terahertz biphotons are discussed. |
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International Conference Laser Optics |
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no |
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1806 |
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Shcheslavskiy, V.; Morozov, P.; Divochiy, A.; Vakhtomin, Y.; Smirnov, K.; Becker, W. |
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Title |
Erratum: “Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector” [Rev. Sci. Instrum. 87, 053117 (2016)] |
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Miscellaneous |
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2016 |
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Rev. Sci. Instrum. |
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Rev. Sci. Instrum. |
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87 |
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6 |
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069901 |
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SSPD, SNSPD, TCSPC, jitter |
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In the original paper1the Ref. 10 should be M. Sanzaro, N. Calandri, A. Ruggeri, C. Scarcella, G. Boso, M. Buttafava, and A. Tosi, Proc. SPIE9370, 93701T (2015). |
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Becker & Hickl GmbH, Nahmitzer Damm 30, Berlin 12277, Germany |
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0034-6748 |
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PMID:27370512 |
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1810 |
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Гольцман, Григорий Наумович; Корнеев, Александр Александрович; Антипов, Андрей Владимирович; Минаева, Ольга Вячеславовна; Дивочий, Александр Валерьевич; Антипов, Сергей Владимирович; Вахтомин, Юрий Борисович; Смирнов, Константин Владимирович |
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Title |
Способ фильтрации фонового излучения инфракрасного диапазона |
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Patent |
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2014 |
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RU 2510056 C1 |
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Изобретение относится к способам уменьшения интенсивности фонового излучения инфракрасного диапазона. Способ фильтрации фонового излучения инфракрасного диапазона, падающего на сверхпроводниковый однофотонный детектор, включает передачу излучения инфракрасного диапазона с длиной волны 0,4-1,8 микрометров на сверхпроводниковый однофотонный детектор при помощи одномодового волокна, частично находящегося при температуре 4,0-4,4 К. При этом длина охлаждаемого участка одномодового волокна составляет 0,2-3,5 м. Технический результат заключается в повышении надежности работы фотонных детекторов. 2 з.п. ф-лы. |
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1815 |
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Антипов, Андрей Владимирович; Дивочий, Александр Валерьевич; Вахтомин, Юрий Борисович; Финкель, Матвей Ильич; Смирнов, Константин Владимирович |
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Способ прецизионного позиционирования чувствительного элемента фотонного детектора |
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Patent |
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2014 |
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RU 2506664 C1 |
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Изобретение относится к способам, позволяющим производить совмещение фотонных детекторов относительно оптического излучения. Способ прецизионного позиционирования чувствительного элемента фотонного детектора относительно амплитудно-модулированного оптического излучения включает смещение чувствительного элемента фотонного детектора постоянным током с последующей регистрацией электрического сигнала, возникающего на контактах детектора на частоте модуляции излучения. Полученный при этом сигнал используют как параметр, определяющий качество позиционирования. Обеспечивается повышение технико-эксплуатационных характеристик детектора. |
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1816 |
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Hübers, H.-W.; Semenov, A.; Richter, H.; Birk, Manfred; Krocka, Michael; Mair, Ulrich; Smirnov, K.; Gol'tsman, G.; Voronov, B. |
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Title |
Terahertz heterodyne receiver with a hot-electron bolometer mixer |
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Conference Article |
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Year |
2002 |
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Proc. Far-IR, Sub-mm, and mm Detector Technology Workshop |
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Proc. Far-IR, Sub-mm, and mm Detector Technology Workshop |
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NbN HEB mixers |
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During the past decade major advances have been made regarding low noise mixers for terahertz (THz) heterodyne receivers. State of the art hot-electron-bolometer (HEB) mixers have noise temperatures close to the quantum limit and require less than a µW power from the local oscillator (LO). The technology is now at a point where the performance of a practical receiver employing such mixer, rather than the figures of merit of the mixer itself, are of major concern. We have incorporated a phonon-cooled NbN HEB mixer in a 2.5 THz heterodyne receiver and investigated the performance of the receiver. This yields important information for the development of heterodyne receivers such as GREAT (German receiver for astronomy at THz frequencies aboard SOFIA)[1] and TELIS (Terahertz limb sounder), a balloon borne heterodyne receiver for atmospheric research [2]. Both are currently under development at DLR. |
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Monterey, CA, USA |
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Wold, J.; Davidson, J. |
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4 pages; Unconfirmed but cited in https://kups.ub.uni-koeln.de/1622/1/bedorf.pdf; There is a Program of the Workshop: https://www.yumpu.com/en/document/view/7411055/far-ir-submm-mm-detector-technology-workshop-sofia-usra (there is no title of this article in the Program); There is also identical publication in Proc. ISSTT (Serial: 332, “A broadband terahertz heterodyne receiver with an NbN HEB mixer”). |
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1829 |
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Смирнов, Константин Владимирович |
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Энергетическая релаксация электронов в 2D-канале гетеропереходов GAAS/ALGAAS и транспортные процессы в структурах полупроводник-сверхпроводник на их основе |
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2000 |
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М. МПГУ |
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2DEG, AlGaAs/GaAs heterostructures, NbN films |
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Диссертация посвящена изучению электрон-фононного взаимодействия в двумерном электронном газе, образующемся на границе раздела полупроводников AlGaAs и GaAs, а также созданию на основе гетероперехода GaAs/AlGaAs и сверхпроводника NbN гибридных структур сверхпроводник-полупроводник-сверхпроводник и изучению их электрофизических свойств. |
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Москва, МПГУ |
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Ph.D. thesis |
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1830 |
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