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Sobolewski, Roman; Xu, Ying; Zheng, Xuemei; Williams, Carlo; Zhang, Jin; Verevkin, Aleksandr; Chulkova, Galina; Korneev, Alexander; Lipatov, Andrey; Okunev, Oleg; Smirnov, Konstantin; Gol'tsman, Gregory N. |
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Title |
Spectral sensitivity of the NbN single-photon superconducting detector |
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Journal Article |
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2002 |
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IEICE Trans. Electron. |
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IEICE Trans. Electron. |
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E85-C |
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3 |
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797-802 |
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NbN SSPD, SNSPD |
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We report our studies on the spectral sensitivity of superconducting NbN thin-film single-photon detectors (SPD's) capable of GHz counting rates of visible and near-infrared photons. In particular, it has been shown that a NbN SPD is sensitive to 1.55-µm wavelength radiation and can be used for quantum communication. Our SPD's exhibit experimentally measured intrinsic quantum efficiencies from 20% at 800 nm up to 1% at 1.55-µm wavelength. The devices demonstrate picosecond response time (<100 ps, limited by our readout system) and negligibly low dark counts. Spectral dependencies of photon counting of continuous-wave, 0.4-µm to 3.5-µm radiation, and 0.63-µm, 1.33-µm, and 1.55-µm laser-pulsed radiations are presented for the single-stripe-type and meander-type devices. |
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1531 |
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Author |
Maezawa, Hiroyuki |
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Title |
Application of superconducting hot-electron bolometer mixers for terahertz-band astronomy |
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Journal Article |
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2015 |
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IEICE Trans. Electronics |
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98 |
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3 |
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196-206 |
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HEB mixer applications, HEB applications |
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Recently, a next-generation heterodyne mixer detector – a hot electron bolometer (HEB) mixer employing a superconducting microbridge – has gradually opened up terahertz-band astronomy. The surrounding state-of-the-art technologies including fabrication processes, 4 K cryostats, cryogenic low-noise amplifiers, local oscillator sources, micromachining techniques, and spectrometers, as well as the HEB mixers, have played a valuable role in the development of super-low-noise heterodyne spectroscopy systems for the terahertz band. The current developmental status of terahertz-band HEB mixer receivers and their applications for spectroscopy and astronomy with ground-based, airborne, and satellite telescopes are presented. |
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1073 |
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Algie L. L., Wendell D. S. and Labaar F. |
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Phase noise and AM noise measurements in the frequency domain |
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1984 |
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Infared and milimetres waves |
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Academic Press. |
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11 |
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239-289 |
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RPLAB @ atomics90 @ |
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1002 |
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Zmuidzinas, J.; Betz A. L.; Boreiko R.T. |
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A corner-reflector mixer mount for far infrared wavelengths |
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1989 |
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Infrared Phys. |
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29 |
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119-131 |
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A new type of corner-reflector mixer mount, which has the advantages of ease of fabrication and assembly as well as frequency versatility, has been designed and constructed. The mixer works with arbitrary antenna lengths 241 with the reflector to antenna spacing adjusted to give a strong and symmetric central lobe. The predicted response patterns have been experimentally verified for various antenna lengths and operating frequencies between 800 and 2000 GHz. An important design feature is the incorporation of a microstrip matching network which eliminates IF impedance mismatch and provides mechanical isolation for the whisker antenna. |
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RPLAB @ atomics90 @ |
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944 |
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Lubzens, D.; Rosenfeld, D.; Nemirovsky, Y. |
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The noise equivalent temperature difference performance of HgCdTe photodiode array |
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1988 |
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Infrared Physics |
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Infrared Physics |
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28 |
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6 |
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417-423 |
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HgCdTe detector array |
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0020-0891 |
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469 |
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