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Voronov, B. M.; Gershenzon, E. M.; Gol'tsman, G. N.; Gogidze, I. G.; Gusev, Yu. P.; Zorin, M. A.; Sejdman, L. A.; Semenov, A. D. |
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Title |
Picosecond range detector base on superconducting niobium nitride film sensitive to radiation in spectral range from millimeter waves up to visible light |
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Journal Article |
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Year |
1992 |
Publication |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
Abbreviated Journal |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
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Volume |
5 |
Issue |
5 |
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955-960 |
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NbN HEB detectors |
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Fast-operating picosecond detector of electromagnetical radiation is developed on the basis of fine superconducting film of niobium nitride with high sensitivity within spectral range from millimetric waves up to visible light. Detector sensitive element represents structure covering narrow parallel strips with micron sizes included in the rupture of microstrip line. Detecting ability of the detector and time constant measured using amplitude-simulated radiation of reverse wave tubes and pulse radiation of picosecond gas and solid-body lasers, constitute D*≅1010 W-1·cm·Hz-1/2 and τ≤5 ps respectively, at 10 K temperature. The expected value of time constant of the detector at 10 K obtained via extrapolation of directly measured dependence that is, τ ∝ τ-1, constitutes 20 ps. Experimental data demonstrate that detection mechanism is linked with electron heating effect. |
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Russian |
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0131-5366 |
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1670 |
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Kawamura, J.; Tong, C.-Y. E.; Blundell, R.; Papa, D. C.; Hunter, T. R.; Patt, F.; Gol’tsman, G.; Gershenzon, E. |
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Title |
Terahertz-frequency waveguide NbN hot-electron bolometer mixer |
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Journal Article |
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Year |
2001 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
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Volume |
11 |
Issue |
1 |
Pages |
952-954 |
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Keywords |
NbN HEB mixers |
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Abstract |
We have developed a low-noise waveguide heterodyne receiver for operation near 1 THz using phonon-cooled NbN hot-electron bolometers. The mixer elements are submicron-sized microbridges of 4 nm-thick NbN film fabricated on a quartz substrate. Operating at a bath temperature of 4.2 K, the double-sideband receiver noise temperature is 760 K at 1.02 THz and 1100 K at 1.26 THz. The local oscillator is provided by solid-state sources, and power measured at the source is less than 1 /spl mu/W. The intermediate frequency bandwidth exceeds 2 GHz. The receiver was used to make the first ground-based heterodyne detection of a celestial spectroscopic line above 1 THz. |
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1558-2515 |
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1546 |
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Gurevich, A. Vl.; Mints, R. G. |
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Title |
Self-heating in normal metals and superconductors |
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1987 |
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Rev. Mod. Phys. |
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59 |
Issue |
4 |
Pages |
941-1000 |
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Keywords |
HEB, Joule self-heating effect |
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This review is devoted to the physics of current-carrying superconductors and normal metals having two or more stable states sustained by Joule self-heating. The creation, propagation, and localization of electrothermal domains and switching waves leading to the transition from one stable state to another in uniform and nonuniform samples are treated in detail. The connection between thermal bistability and hysteresis, dropping and stepped current-voltage characteristics, self-induced oscillations of current and voltage, selfreplication of electrothermal domains, and the formation of periodic and stochastic resistive structures are considered. |
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917 |
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Author |
Hans Ekstrom; Karasik, Boris S.; Kollberg, Erik L.; Sigfrid Yngvesson |
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Title |
Conversion gain and noise of niobium superconducting hot–electron–mixers |
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Journal Article |
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Year |
1995 |
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IEEE Trans. Appl. Supercond. |
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Volume |
43 |
Issue |
4 |
Pages |
938-947 |
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Keywords |
Nb HEB mixers |
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254 |
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Братман, В.Л.; Литвак, А.Г.; Суворов, Е.В. |
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Освоение терагерцевого диапазона: источники и приложения |
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2010 |
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Успехи физических наук |
Abbreviated Journal |
Успехи физ. наук |
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181 |
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8 |
Pages |
867–874 |
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HEB |
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RPLAB @ gujma @ |
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674 |
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Author |
Ozhegov, R. V.; Smirnov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V.; Divochiy, A. V.; Goltsman, G. N. |
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Title |
Ultrafast superconducting bolometer receivers for terahertz applications |
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2009 |
Publication |
Proc. PIERS |
Abbreviated Journal |
Proc. PIERS |
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867 |
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Keywords |
HEB |
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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 of detectors and their use both in fundamental and applied studies. In this paper, we present the results of testing the terahertz HEB receiver systems based on ultrathin (∼ 4 nm) NbN and MoRe detectors with a response time of 50 ps and 1 ns, respectively. We have developed three types of devices which differ in the way a terahertz signal is coupled to the detector and cover the following ranges: 0.3–3 THz, 0.1–30 THz and 25–70 THz. In the case of the receiving system optimized for 0.3–3 THz, the sensitive element (a strip of asuperconductor with planar dimensions of 0.2μm (length) by 1.7μm (width)) was integrated witha planar broadband log-spiral antenna. For additional focusing ofthe incident radiation a silicon hyperhemispherical lens was used. For the 0.1–30 THz receivingsystem, the sensitive element was patterned as parallel strips(2μm wide each) filling an area of 500×500μm2with a filling factor of 0.5. In the receivingsystem of this type we used direct coupling of the incident radiation to the sensitive element. Inthe 25–70 THz range (detector type 2/2a in Table 1) we used a square-shaped superconductingdetector with planar dimensions of 10×10μm2. Incident radiation was coupled to the detectorwith the use of a germanium hyperhemispherical lens.The response time of the above receiving systems is determined by the cooling rate of the hotelectrons in the film. That depends on the electron-phonon interaction time, which is less forultrathin NbN than in MoRe. |
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Moscow, Russia |
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The Electromagnetics Academy |
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777 Concord Avenue, Suite 207 Cambridge, MA 02138 |
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1559-9450 |
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978-1-934142-09-7 |
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RPLAB @ sasha @ ozhegovultrafast |
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1022 |
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Author |
Finkel, M. I.; Maslennikov, S. N.; Gol'tsman, G. N. |
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Title |
Terahertz heterodyne receivers based on superconductive hot-electron bolometer mixers |
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Journal Article |
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2005 |
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Radiophys. Quant. Electron. |
Abbreviated Journal |
Radiophys. Quant. Electron. |
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Volume |
48 |
Issue |
10-11 |
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859-864 |
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Keywords |
HEB, applications |
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Abstract |
We consider recent results in development of hot-electron bolometer mixers. Special attention is paid to optimization of the contacts between the antenna and the active area of a superconducting film. An important result in the study of the parasitic effect of direct detection is obtained during the measurement of the noise temperatures by the hot/cold load method. The latest results of studies of the waveguide hot-electron bolometer mixers and their successful practical applications are considered. Progress in development of high-frequency (over 1.3 THz) heterodyne receivers for several important international projects is discussed and new submillimeter radio astronomy projects ESPRIT and SAFIR are described. |
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0033-8443 |
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381 |
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Author |
Karasik, B. S.; Elantiev, A. I. |
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Title |
Noise temperature limit of a superconducting hot-electron bolometer mixer |
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1996 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
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68 |
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6 |
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853-855 |
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Keywords |
HEB mixer noise temperature, Johnson noise, thermal fluctuation noise, noise bandwidth |
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0003-6951 |
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260 |
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Rönnung, F.; Cherednichenko, S.; Winkler, D.; Gol'tsman, G. N. |
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A nanoscale YBCO mixer optically coupled with a bow tie antenna |
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1999 |
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Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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12 |
Issue |
11 |
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853-855 |
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Keywords |
YBCO HTS HEB mixers |
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The bolometric response of YBa2Cu3O7-δ(YBCO) hot-electron bolometers (HEBs) to near-infrared radiation was studied. Devices were fabricated from a 50 nm thick film and had in-plane areas of 10 × 10 µm2, 2 × 0.2 µm2, 1 × 0.2µm2 and 0.5 × 0.2 µm2. We found that nonequilibrium phonons cool down more effectively for the bolometers with smaller area. For the smallest bolometer the bolometric component in the response is 10 dB less than for the largest one. |
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0953-2048 |
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1563 |
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Finkel, M. I.; Maslennikov, S. N.; Gol'tsman, G. N. |
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The concept of the receiving complex for the “Millimetron” space radio telescope |
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2007 |
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Radiophys. Quant. Electron. |
Abbreviated Journal |
Radiophys. Quant. Electron. |
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50 |
Issue |
10-11 |
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837-846 |
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Keywords |
HEB, applications, Millimetron, VLBI |
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We consider the current status of research in the development of a submillimeter and far-infrared receiving instrument and propose promising solutions for the receivers of the spaceborne telescope “Millimetron,” which allow one to realize comprehensively the opportunities given by this international project administrated by the Astrospace Center of the P. N. Lebedev Physical Institute of the Russian Academy of Sciences. |
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0033-8443 |
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411 |
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