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Author Ryabchun, S. A.; Tretyakov, I. V.; Pentin, I. V.; Kaurova, N. S.; Seleznev, V. A.; Voronov, B. M.; Finkel, M. I.; Maslennikov, S. N.; Gol'tsman, G. N.
Title Low-noise wide-band hot-electron bolometer mixer based on an NbN film Type Journal Article
Year 2009 Publication Radiophys. Quant. Electron. Abbreviated Journal
Volume 52 Issue 8 Pages 576-582
Keywords HEB mixer, in-situ contacts, noise temperature, conversion gain bandwidth, diffusion cooling channel
Abstract We develop and study a hot-electron bolometer mixer made of a two-layer NbN–Au film in situ deposited on a silicon substrate. The double-sideband noise temperature of the mixer is 750 K at a frequency of 2.5 THz. The conversion efficiency measurements show that at the superconducting transition temperature, the intermediate-frequency bandwidth amounts to about 6.5 GHz for a mixer 0.112 μm long. These record-breaking characteristics are attributed to the improved contacts between a sensitive element and a helical antenna and are reached due to using the in situ deposition of NbN and Au layers at certain stages of the process.
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Call Number Serial 599
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Author Rasulova, G. K.; Brunkov, P. N.; Pentin, I. V.; Kovalyuk, V. V.; Gorshkov, K. N.; Kazakov, A. Y.; Ivanov, S. Y.; Egorov, A. Y.; Sakseev, D. A.; Konnikov, S. G.
Title Mutual synchronization of two coupled self-oscillators based on GaAs/AlGaAs superlattices Type Journal Article
Year 2011 Publication Tech. Phys. Abbreviated Journal Tech. Phys.
Volume 56 Issue 6 Pages 826-830
Keywords GaAs/AlGaAs superlattices
Abstract The interaction of self-oscillators based on 30-period weakly coupled GaAs/AlGaAs superlattices is studied. The action of one self-oscillator on the other was observed for a constant bias voltage in the absence of generation of self-sustained oscillations in one of the oscillators. It is shown that induced oscillations in a forced oscillator appear due to excitation of oscillations in the system of coupled oscillators forming the electric-field domain wall at the frequency of one of the higher harmonics of a forcing oscillation.
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ISSN 1063-7842 ISBN Medium (up)
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Notes Approved no
Call Number Serial 1214
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Author Pentin, I. V.; Smirnov, A. V.; Ryabchun, S. A.; Ozhegov, R. V.; Gol’tsman, G. N.; Vaks, V. L.; Pripolzin, S. I.; Pavel’ev, D. G.; Koshurinov, Y. I.; Ivanov, A. S.
Title Semiconducting superlattice as a solid-state terahertz local oscillator for NbN hot-electron bolometer mixers Type Journal Article
Year 2012 Publication Tech. Phys. Abbreviated Journal Tech. Phys.
Volume 57 Issue 7 Pages 971-974
Keywords semiconducting superlattice frequency multiplier, NbN HEB mixers
Abstract We present the results of our studies of the semiconducting superlattice (SSL) frequency multiplier and its application as part of the solid state local oscillator (LO) in the terahertz heterodyne receiver based on a NbN hot-electron bolometer (HEB) mixer. We show that the SSL output power level increases as the ambient temperature is lowered to 4.2 K, the standard HEB operation temperature.
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ISSN 1063-7842 ISBN Medium (up)
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Notes Approved no
Call Number Serial 1378
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Author Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Gol'tsman, G. N.
Title Infrared and terahertz detectors on basis of superconducting nanostructures Type Conference Article
Year 2010 Publication Microwave and Telecom. Technol. (CriMiCo), 20th Int. Crimean Conf. Abbreviated Journal
Volume Issue Pages 823-824
Keywords SSPD, SNSPD, HEB
Abstract Results of development of single-photon receiving systems of visible, infrared and terahertz range based on thin-film superconducting nanostructures are presented. The receiving systems are produced on the basis of superconducting nanostructures, which function by means of hot-electron phenomena.
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Publisher Place of Publication Editor IEEE
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Call Number RPLAB @ sasha @ smirnov2010infrared Serial 1025
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Author Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Tarkhov, M. A.; Gol’tsman, G. N.
Title Single-photon detectors for the visible and infrared parts of the spectrum based on NbN nanostructures Type Abstract
Year 2009 Publication Proc. Progress In Electromagnetics Research Symp. Abbreviated Journal Proc. Progress In Electromagnetics Research Symp.
Volume Issue Pages 863-864
Keywords SSPD, SNSPD
Abstract The research by the group of Moscow State Pedagogical University into the hot-electron phenomena in thin superconducting films has led to the development of new types ofdetectors [1, 2] and their use both in fundamental and applied studies [3–6]. In this paper, wepresent the results of the development and fabrication of receiving systems for the visible andinfrared parts of the spectrum optimised for use in telecommunication systems and quantumcryptography.
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Publisher Place of Publication Moscow, Russia Editor
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Notes Approved no
Call Number RPLAB @ sasha @ smirnovsession Serial 1050
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