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Гершензон, Е. М.; Грачев, С. А.; Литвак-Горская, Л. Б. |
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Title |
Механизм преобразования частоты в n-InSb-смесителе |
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Journal Article |
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1991 |
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Физика и техника полупроводников |
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Физика и техника полупроводников |
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25 |
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11 |
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1986-1998 |
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n-InSb mixer |
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Abstract |
Проведено комплексное исследование n-InSb смесителя на λ=2.6 мм, включающее в себя исследование вольт-амперных характеристик при E=0−2 В/см, температурной зависимости проводимости в диапазоне T=1.6−20 K, высокочастотной проводимости при f=0.5−10 МГц и магнитосопротивления при H=0−5 кЭ. Показано, что в оптимальном режиме механизм преобразования частоты связан с фотоионизационными процессами при прыжковой фотопроводимости (ПФП). На основе модели ПФП рассчитан коэффициент преобразования смесителя и произведено сопоставление его с экспериментом. Показана несостоятельность модели преобразования частоты в компенсированном n-InSb (K≥0.8), основанной на разогреве электронов. Обсуждены требования к параметрам материала и режимам n-InSb смесителя миллиметрового диапазона волн. |
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1753 |
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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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Year |
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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Belitsky, V. Y.; Tarasov, M. A. |
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SIS junction reactance complete compensation |
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1991 |
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IEEE Trans. Magn. |
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27 |
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2 |
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2638-2641 |
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243 |
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ГОСТ 34.201-89. Виды, комплектность и обозначение документов при создании автоматизированных систем |
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1991 |
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gost, detproj |
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872 |
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