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Gershenzon, Ye. M.; Goltsman, G. N.; Yelantyev, A. I.; Petrova, Ye. B.; Ptitsina, N. G.; Filatov, V. S. |
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Title |
Lecture demonstrations of properties of superconductors and liquid helium |
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Journal Article |
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Year |
1987 |
Publication |
USSR Rept Phys. Math. JPRS UPM |
Abbreviated Journal |
USSR Rept Phys. Math. JPRS UPM |
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24 |
Issue |
7 |
Pages |
51 |
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Keywords |
demonstrations, lections |
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Abstract |
New demonstrations for low temperature physics courses are described. Two transparent Dewar vacuum flasks fitting one inside the other with the external flask for nitrogen and the internal flask for helium are used. The helium temperature can be regulated in the 4.2 to 1.6 K range and the effects of reducing helium to the superfluid state at 2.17 K can be shown: boiling abruptly stops and superfluid flow appears. In order to show the electric and magnetic characteristics of superconductivity, a superconducting NbTi solenoid containing nonsuperconducting wire and germanium and superconducting Nb materials with different critical temperatures is placed in the helium refrigerant vessel. The fall of the resistance at the critical temperatures can be shown. In order to show magnetic field and superconductive current flow properties a shunt of superconductive material is connected in parallel to the coil and is enclosed in a teflon container with a heater which can vary its temperature. When it is heated and not superconductive, magnetic field effects can be demonstrated and when it is unheated and superconducting a continuous current can be demonstrated. |
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1704 |
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Gershenzon, E. M.; Goltsman, G. N.; Multanovskii, V. V.; Ptitsina, N. G. |
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Title |
Kinetics of submillimeter impurity and exciton photoconduction in Ge |
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Journal Article |
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Year |
1982 |
Publication |
Optics and Spectroscopy |
Abbreviated Journal |
Optics and Spectroscopy |
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52 |
Issue |
4 |
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454-455 |
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Keywords |
Ge, exciton photoconduction |
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1715 |
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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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Year |
2002 |
Publication |
IEICE Trans. Electron. |
Abbreviated Journal |
IEICE Trans. Electron. |
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Volume |
E85-C |
Issue |
3 |
Pages |
797-802 |
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Keywords |
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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Blagosklonskaya, L. E.; Gershenzon, E. M.; Gol’tsman, G. N.; Elant’ev, A. I. |
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Title |
Effect of a strong magnetic field on the spectrum of donors in InSb |
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Journal Article |
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Year |
1978 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
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Volume |
11 |
Issue |
12 |
Pages |
1395-1397 |
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Keywords |
InSb, spectrum of donors, strong magnetic field |
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1725 |
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Gershenzon, E. M.; Goltsman, G.; Orlova, S.; Ptitsina, N.; Gurvich, Y. |
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Title |
Germanium hot-electron narrow-band detector |
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Journal Article |
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1971 |
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Sov. Radio Engineering And Electronic Physics |
Abbreviated Journal |
Sov. Radio Engineering And Electronic Physics |
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16 |
Issue |
8 |
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1346 |
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Keywords |
Ge HEB detectors |
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Scripps Clinic Res Foundation 476 Prospect St, La Jolla, Ca 92037 |
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1741 |
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Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G. |
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Title |
Investigation of excited donor states in GaAs |
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Journal Article |
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1974 |
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Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
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Volume |
7 |
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10 |
Pages |
1248-1250 |
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GaAs, excited donor states |
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Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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1733 |
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Author |
Gershenzon, E. M.; Goltsman, G. N. |
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Title |
Zeeman effect in excited-states of donors in germanium |
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Journal Article |
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1972 |
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Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
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Volume |
6 |
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3 |
Pages |
509 |
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Ge, donors, Zeeman effect |
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Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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1737 |
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Author |
Goltsman, G. |
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Title |
Simple method for stabilizing power of submillimetric spectrometer |
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Year |
1972 |
Publication |
Pribory i Tekhnika Eksperimenta |
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Pribory i Tekhnika Eksperimenta |
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1 |
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136 |
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Mezhdunarodnaya Kniga 39 Dimitrova Ul., Moscow, 113095, Russia |
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1738 |
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Author |
Gershenson, E. M.; Gol'tsman, G. N.; Elant'ev, A. I.; Kagane, M. L.; Multanovskii, V. V.; Ptitsina, N. G. |
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Title |
Use of submillimeter backward-wave tube spectroscopy in determination of the chemical nature and concentration of residual impurities in pure semiconductors |
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Journal Article |
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1983 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
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Volume |
17 |
Issue |
8 |
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908-913 |
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BWO spectroscopy, pure semiconductors, residual impurities |
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Применение субмиллиметровой ЛОВ спектроскопии для определения химической природы и концентрации примесей в чистых полупроводниках |
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1714 |
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Boyarskii, D. A.; Gershenzon, V. E.; Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G.; Tikhonov, V. V.; Chulkova, G. M. |
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On the possibility of determining the microstructural parameters of an oil-bearing layer from radiophysical measurement data |
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Journal Article |
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1996 |
Publication |
J. of Communications Technology and Electronics |
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J. of Communications Technology and Electronics |
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Volume |
41 |
Issue |
5 |
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408-414 |
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Keywords |
submillimeter waves, transmission |
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A method for the reconstruction of microstructural properties of an oil-bearing rock from the spectral dependence of the transmission factor of submillimeter waves is proposed. |
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1064-2269 |
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Радиотехника и электроника 41, no. 4 (1996): 441-447 |
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1611 |
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