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1501. http://www.cplire.ru/html/lab234/pubs/1999JETLp340e.pdf
... The selective detector response and the response at an intermediate frequency of 1.4 GHz are measured under the action of a signal in the frequency range 350 ґ 1250 GHz. ... 341 Josephson mixers can have a noise temperature two to three times lower than that of spectrometers using Schottky diodes.1,2 The method of Hilbert spectroscopy,3 employed for processing the selective detector response of a Josephson junction, has been widely used to the present day. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/1999JETLp340e.pdf -- 57.2 Кб -- 28.02.2005
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1502. http://www.cplire.ru/html/lab234/pubs/2002JETLp507e.pdf
... The temperature response of the bolometer was measured at temperatures down to 260 mK. ... To measure optical response, black-body radiation was used as a source of signal inside the cryostat. ... The dependences of the bolometer response on the bias voltage, as measured in the temperature variation regime (Fig. 4, curve DVT) and for the built-in radiation source (curve DV 249 mV), demonstrate a reasonable agreement with the theoretical estimates. ... The minimal temperature in the system was Fig. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2002JETLp507e.pdf -- 62.3 Кб -- 28.02.2005
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1503. http://www.cplire.ru/html/lab234/pubs/2002PhysicaCp355.pdf
Physica C 372ґ376 (2002) 355ґ359 www.elsevier.com/locate/physc Antenna coupled planar arrays of Josephson junctions M. Tarasov a a,b,* , E. Stepantsov a,c, T. Lindstro a, A. Kalabukhov om Z. Ivanov a, T. Claeson a a,d , MINA, Department of Physics, Chalmers University of Technology and Gteborg University, Gothenburg S41296, Sweden o b Institute of Radio Engineering and Electronics RAS, Mokhovaya 11, Moscow 101999, Russia c Institute of Crystallography RAS, Lenensky Prosp. ... Fig. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2002PhysicaCp355.pdf -- 238.4 Кб -- 28.02.2005
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1504. http://www.cplire.ru/html/lab234/pubs/2004NanoTechp224.pdf
INST ITUTE OF PHYSI CS PUB LISHING N ANOTECHNOLOGY Nanotechnology 15 (2004) S224ґS228 PII: S0957-4484(04)70063-X Effective electron microrefrigeration by superconductorґinsulatorґ normal metal tunnel junctions with advanced geometry of electrodes and normal metal traps Ian JasperAgulo1 ,Leonid Kuzmin1, Michael Fominsky1 and Michael Tarasov1,2 1 ,2 Department of Microtechnology and Nanoscience, Quantum ... The first step was the fabrication of the normal metal traps. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004NanoTechp224.pdf -- 467.0 Кб -- 28.02.2005
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1505. http://www.cplire.ru/html/lab234/pubs/1998JETLp454e.pdf
... 1998 Subharmonic Shapiro steps and noise in high-T superconductor Josephson junctions M. Tarasov a) c Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 103907 Moscow, Russia; ? Chalmers University ... Structures of this type are ordinarily described by a nonsinusoidal current ґ phase relation, which is why subharmonic steps appear. ... 4 However, in our experiments the subharmonic steps were observed on many junctions. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/1998JETLp454e.pdf -- 83.9 Кб -- 28.02.2005
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1506. http://www.cplire.ru/html/lab234/pubs/2003CompPhysCp171.pdf
Computer Physics Communications 151 (2003) 171н186 www.elsevier.com/locate/cpc Deconvolution problems and superresolution in Hilbert-transform spectroscopy based on a.c. Josephson effect E.L. Kosarev a, , A.Ya. ... The deconvolution problem in Hilbert transform spectroscopy is posed and its solution is considered using the approach of the 1st kind integral equation for the spectrum of the incident radiation constructed from the input data of the Hilbert transform spectroscopy--the `hilbertogram'. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2003CompPhysCp171.pdf -- 184.4 Кб -- 28.02.2005
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1507. http://www.cplire.ru/html/lab234/pubs/2003IEEEtransASCp1039.pdf
... 2, JUNE 2003 1039 Properties of a High-Tc dc SQUID Radiofrequency Amplifier Alexey S. Kalaboukhov, Michael A. Tarasov, Ants Lohmus, Zdravko G. Ivanov, and Oleg V. Snigirev Abstract--We present an experimental investigation of a radiofrequency amplifier based on a bicrystal high- dc SQUID designed for the frequency range 500ґ3000 MHz. ... Maximum power gain was found to be 16 dB at 520 MHz for a SQUID with 8 turn input coil. ... Digital Object Identifier 10.1109/TASC.2003.814145 T Fig. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2003IEEEtransASCp1039.pdf -- 128.7 Кб -- 28.02.2005
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1508. http://www.cplire.ru/html/lab234/pubs/2003JETLp714e.pdf
... Electron Cooling in a Normal-Metal Hot-Electron Bolometer M. A. Tarasov1, 3, *, L. S. Kuz'min2, 3, M. Yu. University of Technology, S41296 Gothenburg, Sweden Received September 17, 2003; in final form, October 9, 2003 Normal-metal hot- electron bolometers, each of which contains two superconductorґinsulatorґnormal metal ( SIN ) junctions for electron cooling and two SIN junctions for temperature measurements, were fabricated and experimentally studied ... The resistance ratio at Fig. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2003JETLp714e.pdf -- 115.0 Кб -- 28.02.2005
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1509. http://www.cplire.ru/html/lab234/pubs/2003RadElHilbertp1124e.PDF
... RADIO PHENOMENA IN SOLIDS AND PLASMA Hilbert-Transform Spectroscopy Based on the a.c. Josephson Effect. ... Hilbert-transform spectroscopy was incited by the similarity between an odd-resonance shape of the selective response of the Josephson junction to the monochromatic irradiation as a function of the bias voltage and the frequency dependence of the refraction index observed in the anomalous dispersion region, 1 1 In this paper, English scientific terms are suggested by the authors. ... Vol. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2003RadElHilbertp1124e.PDF -- 256.3 Кб -- 28.02.2005
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1510. http://www.cplire.ru/html/lab234/pubs/2004JAPp3357.pdf
JOURNAL OF APPLIED PHYSICS VOLUME 96, NUMBER 6 15 SEPTEMBER 2004 THz Josephson properties of grain boundary YBaCuO junctions on symmetric, tilted bicrystal sapphire substrates E. Stepantsov Institute of Crystallography RAS, 117333, Moscow, Russia M. Tarasov Institute of Radio Engineering and ... Chalmers University of Technology, SE 41296, Gothenburg, Sweden (Received 9 March 2004; accepted 18 June 2004) Superconducting Josephson ... This direction corresponds to 100 YBaCuO. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004JAPp3357.pdf -- 287.8 Кб -- 28.02.2005
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1511. http://www.cplire.ru/html/lab234/pubs/2004JETLp298e.pdf
... Terahertz Spectroscopy with a Josephson Oscillator and a SINIS Bolometer M. Tarasov1, 4, L. Kuz'min2, 4, E. Stepantsov3, 4, I. Agulo4, A. Kalabukhov2, 4, M. Fominskii1, 4, Z. Ivanov4, and T. Claeson4 1 ... Russia 4 Chalmers University of Technology, Gothenburg, Sweden Received January 26, 2004; in final form, February 17, 2004 The voltage response of a thin-film normal-metal hot-electron ... SINIS bolometers. ... Bolometer response to changes in temperature and absorbed power. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004JETLp298e.pdf -- 127.1 Кб -- 28.02.2005
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1512. http://www.cplire.ru/html/lab234/pubs/2004JETLp356r.pdf
... S X " 0ё ' 7" H H5F 8 03 єё ? ? ?і ! ... а о ё V? 5 9 ё Є B ё Q? ? ? ё ё R B ё r R ? R ё ё x p з Ї п ? 5 ё V R ? V r p ё ( ? R хr B г ё ё x ? B 6 R r є ё є ё p R є p d пже V r ё І R R R Ai m fё 0r p ? 4l q T 0 xi ? nu ? є~ '} ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004JETLp356r.pdf -- 448.3 Кб -- 28.02.2005
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1513. http://www.cplire.ru/html/lab234/pubs/2004-02.pdf
... 5 MH z) HP S y nth e si ze r a t 18 G Hz * Absol ute FFO phase n oi se, Absol ute FFO phase n oi se, H P S y nthesiz e r at 18 G H z H IFI S p ec i ficatio ns fo r 24 - n (n = 24) fFFO = 45 0 G Hz (n = 24) fFFO = 70 ... e r -4 0 -6 0 -8 0 -10 0 -12 0 -14 0 Phase Noi se (dBc/Hz) 10 10 0 1k 10k 100k 1M 10M 1 00 M Offs et fr om C ar r ier (H z) 08 April SIR for TELIS 5 3 Concepts of a SIR with PL FFO Liquid Helium T=4.2K Beam B Splitter IF-1 4-8GHz (T=4.2K) ... 08 April SIR for TELIS 71 ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-02.pdf -- 1547.3 Кб -- 28.02.2005
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1514. http://www.cplire.ru/html/lab234/pubs/2004-11.pdf
... 30 25 FFO Linewidth (MHz) 20 15 10 5 0 90 75 60 45 30 15 0 Spectral Ratio of the PLL FFO (%) 7 , , , fFFO = 526 GHz fFFO = 616 GHz fFFO = 706 GHz 4 6 8 10 12 14 16 FFO Width, W (?m) November 18, 2004 Post-critical Review - SIR for TELIS SR of the PL FFO with increased overlapping All circuits are from the same batch, Jc= 7 kA/cm2 100 Spectral Ratio of the PL ... November 18, 2004 Post-critical Review - SIR for TELIS 28 List of problems and worries (1) 1. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-11.pdf -- 1053.3 Кб -- 28.02.2005
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1515. http://www.cplire.ru/html/lab234/pubs/2004-01.pdf
Integrated Superconducting Submm Receivers V.P. Koshelets, Institute of Radio Engineering and Electronics (IREE-Moscow) Integrated Superconducting Submm Receivers ABSTRACT The concept of a fully Superconducting Integrated Receiver (SIR) has been developed and experimentally proven in a tight collaboration between the Institute of Radio Engineering and Electronics (IREE-Moscow) and the Space Research Organization of the Netherlands (SRON-Groningen). ... 1) 2 Fig. ... Laboratory Integrated receiver (a). ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-01.pdf -- 1949.0 Кб -- 28.02.2005
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1516. http://www.cplire.ru/html/lab234/pubs/2004-03.pdf
... (SRON), the Netherlands and National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan Status of the SIR Program for SR T (Extension to 1 THz ) Outline Ї Ї Ї Ї Ї Ї Ї Ї 08 April IREE Technological Facilities Tunnel Junctions with AlN barriers Sub-micron SIS Junctions Tunnel Junctions with NbN electrodes Test of the FFO with NbN electrodes Cryogenic PLL; SQA Towards 1 THz ... Integration of a FFO and NbN HEB ?? ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-03.pdf -- 1128.6 Кб -- 28.02.2005
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1517. http://www.cplire.ru/html/lab234/pubs/2004-04.pdf
... A novel FFO design at a moderate current density has resulted in a free-running FFO linewidth of about 10 MHz in the flux flow regime up to 712 GHz, limited only by the gap frequency of Nb. ... Some figures in this article are in colour only in the electronic version) 1. ... The linewidth is measured at constant bias current, while the FFO frequency (voltage) is tuned by the magnetic field (by the control line current). and at lower voltages in the resonant regime on the Fiske steps (FSs) [5]. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-04.pdf -- 150.6 Кб -- 28.02.2005
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1518. http://www.cplire.ru/html/lab234/pubs/2004-05.pdf
Integrated Submillimeter and Terahertz Receivers with Superconducting Local Oscillator V.P. Koshelets1,2, S.V. Shitov1,2, P.N. Dmitriev1, A.B. Ermakov1,2, L.V.Filippenko1, O.V. Koryukin1, A.S. Sobolev1, M.Yu. ... A single-chip submm wave receiver includes a planar antenna integrated with a SIS mixer, pumped by an internal superconducting FFO as local oscillator (LO). ... To optimize the FFO design, an influence of the FFO parameters on the radiation linewidth is studied. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-05.pdf -- 20.5 Кб -- 28.02.2005
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1519. http://www.cplire.ru/html/lab234/pubs/2004-06.pdf
... It will fly together with the MIPAS-B2 instrument and the combination will yield the most complete map of atmospheric species ever measured from one platform. The three channels are selected at 500 GHz, tunable between 500 and 650 GHz and at 1.8 THz, and employ a SIS mixer, a Superconducting Integrated Receiver and a HEBM. ... TELIS receiver channels The 500 GHz channel is being developed by the RAL and is equal to band E of the MASTER instrument on board the proposed ACECHEM mission [13]. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-06.pdf -- 85.9 Кб -- 28.02.2005
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1520. http://www.cplire.ru/html/lab234/pubs/2004-07.pdf
Report 1EW01 at the Applied Superconductivity Conference ASC'2004, USA, October 2004 1 Study of a Multi-Channel RF Amplifier Based on DC SQUID for 3-5 GHz Band Georgy V. Prokopenko, Sergey V. Shitov, Irina L. Lapitskaya, Satoshi Kohjiro, Masaaki Maezawa and Akira Shoji noise characteristics applications. ... D of SQA towards practicable rf Abstract-- A low-noise rf amplifier based on a dc SQUID (SQA) is developed and tested within frequency range 3.0 4.5 GHz. ... Photo of main part of output filter. ...
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Ссылки http://www.cplire.ru/html/lab234/pubs/2004-07.pdf -- 793.4 Кб -- 28.02.2005
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