Records |
Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Karasik, B. S.; Lugovaya, G. Ya.; Serebryakova, N. A.; Chinkova, E. V. |
Title |
Infrared radiation detectors on the base of electron heating in resistive state films from traditional superconducing materials |
Type |
Journal Article |
Year |
1992 |
Publication |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
Abbreviated Journal |
Sverkhprovodimost': Fizika, Khimiya, Tekhnika |
Volume |
5 |
Issue |
6 |
Pages |
1129-1140 |
Keywords |
IR HEB detectors |
Abstract |
Characteristics of infrared radiation detectors based on electron heating in thin superconducting films transformed at T ≤ Tc to a resistive state by transport current and, if necessary, by magnetic field are investigated. A comparison is made of the characteristics of the detectors fabricated of different materials: aluminium, niobium, Mo0.5Re0.5. Some devices with different topology of the reception area are considered. Electron heating detectors are comparable by their sensitivity with superconducting bolometers, but differ in a high fast-response. |
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0131-5366 |
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1673 |
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Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Karasik, B. S.; Semenov, A. D. |
Title |
Measurement of the energy gap in the compound YBaCu3O9-δ on the basis of the IR absorption spectrum |
Type |
Journal Article |
Year |
1987 |
Publication |
JETP Lett. |
Abbreviated Journal |
JETP Lett. |
Volume |
46 |
Issue |
5 |
Pages |
237-238 |
Keywords |
YBCO HTS detectors |
Abstract |
For the first time the long-wave infrared absorption spectrum has been measured by means of the bolometric effect and energy gap for high-temperature superconducting ceramics YBa/sub 2/Cu/sub 3/O/sub 9-delta/ has been determined from absorption threshold. 2delta/kT/sub c/ value is equal to 0.6. |
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1703 |
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Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Mel'nikov, A. P. |
Title |
Binding energy of a carrier with a neutral impurity atom in germanium and in silicon |
Type |
Journal Article |
Year |
1971 |
Publication |
JETP Lett. |
Abbreviated Journal |
JETP Lett. |
Volume |
14 |
Issue |
5 |
Pages |
185-186 |
Keywords |
Ge, Si, neutral impurity atom, binding energy |
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Serial |
1739 |
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Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Mirskii, G. I. |
Title |
Submillimeter backward-wave-tube spectrometer-relaxometer |
Type |
Journal Article |
Year |
1987 |
Publication |
Pribory i Tekhnika Eksperimenta |
Abbreviated Journal |
Pribory i Tekhnika Eksperimenta |
Volume |
30 |
Issue |
4 |
Pages |
131-137 |
Keywords |
BWO, applications |
Abstract |
A backward-wave-tube (BWT) spectrometer-relaxometer is described that is designed for study of the relaxation characteristics of photoconductors in the wavelength range of 2-0.25 mm – in particular, to measure the relaxation times of the submillimeter photoconductivity of germanium in the range of 10[sup:-4]-10[sup:-9] sec and to determine from these data the concentration of compensating impurities of from 10[sup:10] to 10[sup:14] cm[sup:-3]. The instrument uses the beats of the oscillations of two BWTs and records the amplitude-frequency response of the specimen with variation of the beat frequency from 10[sup:4] to 10[sup:8] Hz with accumulation of the desired signal for less than or equal to1 sec by means of a quadrature synchronous detector. The beat frequency is stabilized and the quadrature voltages of the synchronous detector are formed by means of phase-locked loops. |
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1699 |
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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 |
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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1711 |
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