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Author |
Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G. |
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Submillimeter spectroscopy of semiconductors |
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Journal Article |
Year |
1973 |
Publication |
Sov. Phys. JETP |
Abbreviated Journal |
Sov. Phys. JETP |
Volume |
37 |
Issue |
2 |
Pages |
299-304 |
Keywords |
semiconductors, submillimeter spectroscopy, spectrometer, BWO, Ge, free excitons |
Abstract |
The possibility is considered of carrying out submillimeter-wave spectral investigations of semiconductors by means of a high resolution spectrometer with backward-wave tubes. Results of a study of the excitation spectra of small impurities, D-(A +) centers and free excitons in germanium are presented. |
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1735 |
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Author |
Goltsman, G. N. |
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Submillimeter superconducting receivers for astronomy, atmospheric studies and other applications |
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Abstract |
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2006 |
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31nd IRMW / 14th ICTE |
Abbreviated Journal |
31nd IRMW / 14th ICTE |
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177 |
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Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics |
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1443 |
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Aksaev, E. E.; Gershenzon, E.M.; Gol'tsman, G. N.; Mirskij, G. I.; Semenov, A. D. |
Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Submillimetric spectrometer-relaxometer based on backward-wave tubes with picosecond time resolution |
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Journal Article |
Year |
1991 |
Publication |
Pribory i Tekhnika Eksperimenta |
Abbreviated Journal |
Pribory i Tekhnika Eksperimenta |
Volume |
34 |
Issue |
2 |
Pages |
125-131 |
Keywords |
BWO, applications |
Abstract |
The high-sensitive automatic spectrometer-relaxometer based on backward-wave tubes in the range of 4÷0.25 mm was described permitting to study the response kinetics of sample under investigation in any point of this range with the resolution time of 10-11 s. The relaxation measurements were conducted using oscillation beats of two adequate tubes, the frequency of one of them was fixed, while that of the other one was changeable. The amplitude-frequency characteristic of the response under the conditions of synchronous reception was recorded at beat frequency variation from 107 to 1010 Hz. The high sensitivity was reached by decreasing the device recording band down to 100 Hz in the whole measuring range. |
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0032-8162 |
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1683 |
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Semenov, A. D.; Gol’tsman, G. N.; Gogidze, I. G.; Sergeev, A. V.; Gershenzon, E. M.; Lang, P. T.; Renk, K. F. |
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Subnanosecond photoresponse of a YBaCuO thin film to infrared and visible radiation by quasiparticle induced suppression of superconductivity |
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Journal Article |
Year |
1992 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
60 |
Issue |
7 |
Pages |
903-905 |
Keywords |
YBCO HTS detectors |
Abstract |
We observed subnanosecond photoresponse of a structured superconducting YBa2Cu3O7−δ thin film to infrared and visible radiation. We measured the voltage response of a current biased film (thickness 700 Å) in a resistive state to radiation pulses. From our results we conclude a response time of about 90 ps and a responsivity of about 4×1010 Ω/J. We attribute the response to Cooper pair breaking and suppression of the superconducting energy gap induced by nonequilibrium quasiparticles. |
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0003-6951 |
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1672 |
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Author |
Karasik, B.S.; Milostnaya, I.I.; Zorin, M.A.; Elantev, A.I.; Gol'tsman, G.N.; Gershenzon, E.M. |
Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Subnanosecond S-N and N-S switching of YBCO film induced by current pulse |
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Journal Article |
Year |
1994 |
Publication |
Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
Volume |
235-240 |
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Pages |
1981-1982 |
Keywords |
YBCO HTS switches |
Abstract |
A transition of YBCO bridge 60 nm thick from superconducting to normal state induced by an abrupt current step has been studied. A subnanosecond stage has been observed during both S-N and N-S transition. The data obtained can be explained by hot-electron phenomena. On the basis of experimental results a prediction of picosecond switch performance has been made. |
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0921-4534 |
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1633 |
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