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Vahtomin, Yuriy B.; Finkel, Matvey I.; Antipov, Sergey V.; Voronov, Boris M.; Smirnov, Konstantin V.; Kaurova, Natalia S.; Drakinski, Vladimir N.; Gol'tsman, Gregogy N. |
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Gain bandwidth of phonon-cooled HEB mixer made of NbN thin film with MgO buffer layer on Si |
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Conference Article |
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2002 |
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Proc. 13th Int. Symp. Space Terahertz Technol. |
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Proc. 13th Int. Symp. Space Terahertz Technol. |
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259-270 |
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NbN HEB mixers, conversion gain bandwidth |
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We present recently obtained values for gain bandwidth of NbN HEB mixers for different substrates and film thicknesses and for MgO buffer layer on Si at LO frequency of 0.85-1 THz. The maximal bandwidth, 5.2 GHz, was achieved for the device on MgO buffer layer on Si with a 2 nm thick NbN film. Functional devices based on NbN films of such thickness were fabricated for the first time due to an improvement of superconducting properties of NbN film deposited on MgO buffer layer on Si substrate. |
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Cambridge, MA, USA |
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Harvard university |
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325 |
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Author |
Smirnov, Konstantin; Vachtomin, Yury; Divochiy, Alexander; Antipov, Andrey; Goltsman, Gregory |
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Title |
Dependence of dark count rates in superconducting single photon detectors on the filtering effect of standard single mode optical fibers |
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Journal Article |
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2015 |
Publication |
Appl. Phys. Express |
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Appl. Phys. Express |
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8 |
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2 |
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022501 (1 to 4) |
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IOP Publishing |
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1882-0778 |
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RPLAB @ sasha @ smirnov2015dependence |
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1049 |
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Author |
Gol'tsman, Gregory; Semenov, Alexei; Smirnov, Konstantin; Voronov, Boris |
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Title |
Background limited quantum superconducting detector for submillimeter wavelengths |
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Conference Article |
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2001 |
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Proc. 12th Int. Symp. Space Terahertz Technol. |
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Proc. 12th Int. Symp. Space Terahertz Technol. |
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469-475 |
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Ti SQD, SQUID readout |
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1540 |
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