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Aksaev, E. E.; Gershenzon, E.M.; Gol'tsman, G. N.; Mirskij, G. I.; Semenov, A. D. |
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Title |
Submillimetric spectrometer-relaxometer based on backward-wave tubes with picosecond time resolution |
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Year |
1991 |
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Pribory i Tekhnika Eksperimenta |
Abbreviated Journal |
Pribory i Tekhnika Eksperimenta |
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Volume |
34 |
Issue |
2 |
Pages |
125-131 |
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Keywords  |
BWO, applications |
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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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Lang, P. T.; Leipold, I.; Knott, W. J.; Semenov, A. D.; Gol'tsman, G. N.; Renk, K. F. |
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Title |
New far-infrared laser lines from CH3Cl and CH3Br optically pumped with a continuously tunable high pressure CO2 laser |
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Journal Article |
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1991 |
Publication |
Appl. Phys. B |
Abbreviated Journal |
Appl. Phys. B |
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Volume |
53 |
Issue |
4 |
Pages |
207-212 |
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Keywords |
CO2 IR lasers, applications, CH3Cl, CH3Br |
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In this paper we report on the detection of new far-infrared laser lines from CH3Cl and CH3Br optically pumped with a continuously tunable high pressure CO2 laser. We found 80 new lines for CH3Cl and 9 new lines for CH3Br in the frequency region between 16 cm−1 and 41 cm−1, all due to stimulated Raman scattering. For the Raman gain regions bandwidths up to about 700 MHz were found. We also observed high intensity short far-infrared laser pulses of durations in the nanosecond regime. |
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0721-7269 |
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1678 |
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Lang, P. T.; Knott, W. J.; Leipold, I.; Renk, K. F.; Semenov, A. D.; Gol'tsman, G. N. |
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Title |
Generation and detection of tunable ultrashort infrared and far-infrared radiation pulses of high intensity |
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1992 |
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Int. J. of Infrared and Millimeter Waves |
Abbreviated Journal |
Int. J. of Infrared and Millimeter Waves |
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Volume |
13 |
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3 |
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373-380 |
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Keywords |
CO2 IR lasers, FIR |
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We report on generation and detection of intense pulsed radiation with frequency tunability in the infrared and far-infrared spectral regions. Infrared radiation is generated with a transversally electrically excited high pressure CO2 laser. A laser pulse of a total duration of about 300 ns consisted, due to self mode locking, of a series of single pulses, some with pulse durations of less than 450 ps and peak powers larger than 20 MW. Using these pulses for optical with durations less than 400 ps were obtained. For detection a new ultrafast superconducting detector was used. |
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0195-9271 |
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1671 |
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Gershenzon, E. M.; Goltsman, G. N.; Semenov, A. D.; Sergeev, A. V. |
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Title |
Limiting characteristic of fast superconducting bolometers |
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1989 |
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Sov. Phys.-Tech. Phys. |
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Sov. Phys.-Tech. Phys. |
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34 |
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195-199 |
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HEB |
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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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О предельных характеристиках быстродействующих серхпроводниковых болометров |
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237 |
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Semenov, A. D.; Il'in, K.; Siegel, M.; Smirnov, A.; Pavlov, S.; Richter, H.; Hübers, H.-W. |
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Title |
Evidence of non-bolometric mixing in the bandwidth of a hot-electron bolometer |
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2006 |
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Superconductor Science and Technology |
Abbreviated Journal |
Supercond. Sci. Technol. |
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19 |
Issue |
10 |
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1051-1056 |
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HEB |
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0953-2048 |
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536 |
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