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Лудков, Денис Николаевич |
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Title |
Терагерцовые смесители на горячих электронах из тонких сверхпроводниковых пленок NbN и NbTiN |
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Manuscript |
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2005 |
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М. МПГУ |
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HEB, detector, mixer |
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Ph.D. thesis |
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479 |
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Author |
Елезов, М. С.; Щербатенко, М. Л.; Сыч, Д. В.; Гольцман, Г. Н. |
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Title |
Практические особенности работы оптоволоконного квантового приемника Кеннеди |
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Conference Article |
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2019 |
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Proc. IWQO |
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Proc. IWQO |
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303-305 |
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Kennedy quantum receiver, fiber, quantum optics, standard quantum limit, superconducting nanowire single-photon detector, coherent detection |
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Abstract |
Мы рассматриваем практические особенности работы квантового приемника на основе схемы Кеннеди, собранного из стандартных оптоволоконных элементов и сверхпроводникового детектора одиночных фотонов. Приемник разработан для различения двух фазовомодулированных когерентных состояний света на длине волны 1,5 микрона в непрерывном режиме с частотой модуляции 200 КГц и уровнем ошибок различения примерно в два раза ниже стандартного квантового предела. |
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Russian |
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Duplicated as 1288 |
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1283 |
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Zhou, Y.D.; Becker, C. R.; Ashokan, R.; Selamet, Y.; Chang, Y.; Boreiko, R. T.; Betz, A. L.; Sivananthan, S. |
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Title |
Progress in far-infrared detection technology |
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Conference Article |
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2002 |
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Proc. SPIE |
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4795 |
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121-128 |
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HgCdTe/CdTe, detector |
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II-VI intrinsic very long wavelength infrared (VLWIR, λc~20 to 50 μm) materials, HgCdTe alloys as well as HgCdTe/CdTe superlattices, were grown by molecular beam epitaxy (MBE). The layers were characterized by means of X-ray diffraction, conventional Fourier transform infrared spectroscopy, Hall effect measurements and transmittance electron microscopy (TEM). Photoconductor devices were processed and their spectral response was also measured to demonstrate their applicability in the VLWIR region. |
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Longshore, R. E.; Sivananthan, S. |
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Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series |
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471 |
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Author |
Zhizhon, Yan; Majedi, Hamed A. |
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Title |
Optoelectronic mixing in the NbN superconducting nanowire single photon detectors |
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Conference Article |
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Year |
2009 |
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Proc. SPIE |
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Proc. SPIE |
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3786 |
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9 |
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Optoelectronic devices, microwave superconductivity, nonlinearity, single photon detector, superconductivity, nanowire, optical mixing, microwave mixers, amplitude modulation, intensity modulation. |
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In this paper, we present our experimental results on the electrically pumped optoelectronic mixing effect exhibited in a niobium nitride (NbN) superconducting nanowire. The experimental setup in order to test the mixer has been reported in detail. This superconductive nanowire optoelectronic mixer demonstrates photodetection and mixing in an integrated manner. We have explored both effects under a great variety of external conditions, such as temperature and bias current, in order to seek potential ways toward quantum optoelectronic detection and mixing by such nanowire device. |
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RPLAB @ gujma @ |
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651 |
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Zhang, Zijing; Zhang, Jianlong; Wu, Long; Zhang, Yong; Zhao, Yuan; Su, Jianzhong |
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Title |
Photon-counting chirped amplitude modulation lidar using a smart premixing method |
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Journal Article |
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2013 |
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Opt. Lett. |
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Opt. Lett. |
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38 |
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21 |
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4389-4392 |
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Keywords |
photon-counting detector, lidar, Geiger mode APD, Geiger mode lidar |
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We proposed a new premixing method for photon-counting chirped amplitude modulation lidar (PCCAML). Earlier studies used the counting results of the returned signal detected by a Geiger mode avalanche photodiode detector (Gm-APD) to mix with the reference signal, called the postmixing method. We use an alternative method known as the premixing method, in which the reference signal is used to directly modulate the sampling gate width of the Gm-APD, and the mixing of the returned signal and the reference signal is completed before the Gm-APD. This premixing method is more flexible and may perform better than the postmixing method in terms of signal-to-noise ratio by cutting down a separated mixer commonly used in the postmixing lidar system. Furthermore, this premixing method lowers the demand for the sampling frequency of the Gm-APD. It allows the use of a much wider modulation bandwidth to improve the range accuracy and resolution. To the best of our knowledge, this is the first report to use the premixing method in the PCCAML system, which will benefit future lidar applications. |
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1006 |
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