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Author Danerud, M.; Winkler, D.; Lindgren, M.; Zorin, M.; Trifonov, V.; Karasik, B.; Gershenzon, E. M.; Gol'tsman, G. N.
Title A fast infrared detector based on patterned YBCO thin film Type Journal Article
Year 1994 Publication Supercond. Sci. Technol. Abbreviated Journal (down) Supercond. Sci. Technol.
Volume 7 Issue 5 Pages 321-323
Keywords YBCO HTS detector
Abstract Detectors for infrared radiation ( lambda =0.85 mu m) were made of 50 nm thick YBa2Cu3O7- delta films on LaAlO3 and MgO or 60 nm thick films on NdGaO3. Parallel strips (1 mu m wide by 20 mu m long) were patterned in the films and formed the active device. These devices were designed to detect short infrared laser pulses by electron heating. The detectors were current biased into the resistive and the normal states. The response was studied in direct pulse measurements as well as by amplitude modulation of a laser. The pulse measurements showed a fast picosecond response followed by a slower decay related to phonon escape through the film-substrate interface and heat diffusion in the substrate. The frequency spectra up to 10 GHz showed two slopes with a knee corresponding to the phonon escape time.
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ISSN 0953-2048 ISBN Medium
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Notes Approved no
Call Number Serial 1646
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Gogidze, I. G.; Gusev, Yu. P.; Elantiev, A. I.; Karasik, B. S.; Semenov, A. D.
Title Millimeter and submillimeter wave range mixer based on electronic heating of superconducting films in the resistive state Type Journal Article
Year 1990 Publication Sov. Supercond. Abbreviated Journal (down) Sov. Supercond.
Volume 3 Issue 10 Pages 1582-1597
Keywords HEB mixers
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Notes Approved no
Call Number Serial 240
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Author Gershenzon, E. M.; Goltsman, G.; Orlova, S.; Ptitsina, N.; Gurvich, Y.
Title Germanium hot-electron narrow-band detector Type Journal Article
Year 1971 Publication Sov. Radio Engineering And Electronic Physics Abbreviated Journal (down) Sov. Radio Engineering And Electronic Physics
Volume 16 Issue 8 Pages 1346
Keywords Ge HEB detectors
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Publisher Scripps Clinic Res Foundation 476 Prospect St, La Jolla, Ca 92037 Place of Publication Editor
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Notes Approved no
Call Number Serial 1741
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Author Gershenzon, E. M.; Goltsman, G. N.; Semenov, A. D.; Sergeev, A. V.
Title Limiting characteristic of fast superconducting bolometers Type Journal Article
Year 1989 Publication Sov. Phys.-Tech. Phys. Abbreviated Journal (down) Sov. Phys.-Tech. Phys.
Volume 34 Issue Pages 195-199
Keywords HEB
Abstract Теоретически и экспериментально исследовано физическое ограничение быстродействия сверхпроводящего болометра. Показано, что минимальная постоянная времени реализуется в условиях электронного разогрева и определяется процессом неупругого электрон-фонон- ного взаимодействия. Сформулированы требования кконструкции «электронного болометра» для достижения предельной чувствительности. Проведено сравнение характеристик электронного болометра и обычных болометров различных типов.
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Notes О предельных характеристиках быстродействующих серхпроводниковых болометров Approved no
Call Number Serial 237
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Kagane, M. L.
Title Observation of free carrier resonances in p-type germanium at submillimeter wavelengths Type Journal Article
Year 1978 Publication Sov. Phys. Solid State Abbreviated Journal (down) Sov. Phys. Solid State
Volume 20 Issue 4 Pages 573-579
Keywords p-Ge, free carriers, resonances
Abstract The spectrum of hole resonances in pure p-Ge for submillimetre in quantizing magnetic fields has been studied and identified. Measurements of photoconductivity spectra of p-Ge were made in the wave range lambda = 2-0.3 mm at temp. of 4.2-15 deg K in magnetic fields H up to 40 Measurements at various frequencies showed that the position of a series of characteristic resonances depends on the frequency of the illumination. This is in line with theoretical conclusions about the effective mass of the carriers increasing with rise in the magnetic field as a result of the interaction of the edge of the valency band with the split spin-orbital interaction of the sub 7 exp + band and the conduction band. The relative intensity of the quantum resonance lines of the free holes depends on the excitation conditions.
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Notes Approved no
Call Number Serial 1721
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Author Gershenzon, E. M.; Goltsman, G. N.
Title Zeeman effect in excited-states of donors in germanium Type Journal Article
Year 1972 Publication Sov. Phys. Semicond. Abbreviated Journal (down) Sov. Phys. Semicond.
Volume 6 Issue 3 Pages 509
Keywords Ge, donors, Zeeman effect
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Publisher Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa Place of Publication Editor
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Notes Approved no
Call Number Serial 1737
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Author Blagosklonskaya, L. E.; Gershenzon, E. M.; Gol’tsman, G. N.; Elant’ev, A. I.
Title Effect of a strong magnetic field on the spectrum of donors in InSb Type Journal Article
Year 1978 Publication Sov. Phys. Semicond. Abbreviated Journal (down) Sov. Phys. Semicond.
Volume 11 Issue 12 Pages 1395-1397
Keywords InSb, spectrum of donors, strong magnetic field
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Notes Approved no
Call Number Serial 1725
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Author Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G.
Title Investigation of excited donor states in GaAs Type Journal Article
Year 1974 Publication Sov. Phys. Semicond. Abbreviated Journal (down) Sov. Phys. Semicond.
Volume 7 Issue 10 Pages 1248-1250
Keywords GaAs, excited donor states
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Publisher Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa Place of Publication Editor
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Series Editor Series Title Abbreviated Series Title
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Notes Approved no
Call Number Serial 1733
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Author Gershenzon, E. M.; Gershenzon, M. E.; Goltsman, G. N.; Lulkin, A.; Semenov, A. D.; Sergeev, A. V.
Title Electron-phonon interaction in ultrathin Nb films Type Journal Article
Year 1990 Publication Sov. Phys. JETP Abbreviated Journal (down) Sov. Phys. JETP
Volume 70 Issue 3 Pages 505-511
Keywords Nb films
Abstract A study was made of the heating of electrons in normal resistive states of superconducting thin Nb films. The directly determined relaxation time of the resistance of a sample and the rise of the electron temperature were used to find the electron-phonon interaction time rep,, The dependence of rep, on the mean free path of electrons re,, a 1-'demonstrated, in agreement with the theoretical predictions, that the contribution of the inelastic scattering of electrons by impurities to the energy relaxation process decreased at low temperatures and the observed temperature dependence rep, a T 2 was due to a modification of the phonon spectrum in thin fllms.

1. Much new information on the electron-phonon interaction time?;,, in thin films of normal metals and superconductors has been published recently. This information has been obtained mainly as a result of two types of measurement. One includes experiments on weak electron localization investigated by the method of quantum interference corrections to the conductivity of disordered conductors, which can be used to find the relaxation time T, of the phase of the electron wave function. In the absence of the scattering of electrons by paramagnetic impurities the relaxation time T, is associated with the most effective process of energy relaxation: T;= TL+ rep;, where T,, is the electronelectron relaxation time. At low temperatures, when the dependence T; a T is exhibited by thin disordered films, the dominant channel is that of the electron-electron relaxation and there is a lower limit to the temperature range in which rep, can be investigated.
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Notes Approved no
Call Number Serial 241
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Multanovskii, V. V.; Ptitsina, N. G.
Title Kinetics of electron and hole binding into excitons in germanium Type Journal Article
Year 1983 Publication Sov. Phys. JETP Abbreviated Journal (down) Sov. Phys. JETP
Volume 57 Issue 2 Pages 369-376
Keywords Ge, electron and hole binding
Abstract The kinetics of binding of free carriers'into excitons under stationary and nonstationary conditions is studied by investigating the submillimeter photoconductivity of Ge in a wide range of temperatures and of excitation levels. It is shown that the absolute values and the temperature dependence of the binding cross section (o- T-'.' ) can be satisfactorily described by the cascade recombination theory. The value of o and its temperature dependence differ significantly from the cross sections, measured in the same manner, for capture by attracting small impurities. Under nonstationary conditions, just as in the case of recombination with shallow impurities, a signifi- cant role is played by the sticking of the carriers in highly excited states.
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Notes Approved no
Call Number Serial 1711
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