Records |
Author |
Гершензон, Е. М.; Мельников, А. П.; Рабинович, Р. И.; Смирнова, В. Б. |
Title |
О возможности создания инверсной функции распределения свободных носителей в полупроводниках при захвате на мелкие нейтральные примеси |
Type |
Journal Article |
Year |
1983 |
Publication |
Физика и техника полупроводников |
Abbreviated Journal |
Физика и техника полупроводников |
Volume |
17 |
Issue |
3 |
Pages |
499-501 |
Keywords |
shallow neutral impurities, capture, inverse distribution function, Si |
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Serial |
1764 |
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Author |
Taylor, F.W. |
Title |
Atmospheric physics: Natural lasers on Venus and Mars |
Type |
Journal Article |
Year |
1983 |
Publication |
Nature |
Abbreviated Journal |
Nature |
Volume |
306 |
Issue |
5944 |
Pages |
640-640 |
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ISSN |
0028-0836 |
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Serial |
457 |
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Author |
Tokunaga, Alan T. |
Title |
High resolution infrared spectroscopy of planetary atmospheres |
Type |
Journal Article |
Year |
1983 |
Publication |
Astron. Soc. Pacific. Pub. |
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Volume |
95 |
Issue |
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Pages |
691-699 |
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454 |
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Author |
Gershenson, E. M.; Gol'tsman, G. N.; Elant'ev, A. I.; Kagane, M. L.; Multanovskii, V. V.; Ptitsina, N. G. |
Title |
Use of submillimeter backward-wave tube spectroscopy in determination of the chemical nature and concentration of residual impurities in pure semiconductors |
Type |
Journal Article |
Year |
1983 |
Publication |
Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
Volume |
17 |
Issue |
8 |
Pages |
908-913 |
Keywords |
BWO spectroscopy, pure semiconductors, residual impurities |
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Применение субмиллиметровой ЛОВ спектроскопии для определения химической природы и концентрации примесей в чистых полупроводниках |
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Serial |
1714 |
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Author |
Archer, J. W. |
Title |
Multiple mixer, cryogenic receiver for 200-350 GHz |
Type |
Journal Article |
Year |
1983 |
Publication |
Rev. Sci. Instrum. |
Abbreviated Journal |
Rev. Sci. Instrum. |
Volume |
54 |
Issue |
10 |
Pages |
1371-1376 |
Keywords |
Schottky, mixer, noise temperature |
Abstract |
This paper describes a new 200–350-GHz dual polarization heterodyne radiometer receiver for radio astronomy applications. The receiver incorporates four pairs of cryogenically cooled Schottky-barrier diode single-ended mixers, each pair covering a 30–40-GHz subband of the full operating band. Each mixer, with its IF amplifier, is mounted in an individual cryogenic subdewar comprising a separate vcuum chamber and a cold stage, which may be readily thermally connected to or disconnected from the main refrigerator by a novel mechanical heat switch. A dual polarization LO diplexer is mounted on a rotary table above the subdewars. For band selection, the two diplexer rf output ports may be positioned over any of the four pairs of subdewars. The SSB receiver noise temperatues achieved are less than 500 K between 200 and 240 GHz, less than 800 K between 245 and 275 GHz and 1500 K at 345 GHz. |
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589 |
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