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Gershenzon, E. M., Gol'tsman, G. N., & Semenov, A. D. (1983). Submillimeter backward wave tube spectrometer for measuring superconducting film transmission. Pribory i Tekhnika Eksperimenta, 26(5), 134–137.
Abstract: A spectrometer employing six backward wave tubes is described. It is intended for investigation of superconductors in the 0.2-3 mm range of wave lengths. During the measurement of the transmission spectrum it is possible to determine the energy gap for superconduct1ng films 50 to 4000 A thick. The transmission factor can vary from 10-1 to 10-9. Spectrum of relation of film transmission factors in superconducting and normal states is measured for determining the energy gap 2 Δ. The transmission spectrum obtained by means of a computer for vanadium film 300 A thick is given as an example. The energy gap 2 Δ = 1.4 MeV
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Perrin, N., & Vanneste, C. (1983). Response of superconducting films to a periodic optical irradiation. Phys. Rev. B, 28(9), 5150–5159.
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Rothermel, H., Käufl, H. U., & Yu, Y. (1983). A heterodyne spectrometer for astronomical measurements at 10 micrometers. A&A, 126, 387–392.
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Taylor, F. W. (1983). Atmospheric physics: Natural lasers on Venus and Mars. Nature, 306(5944), 640.
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Tokunaga, A. T. (1983). High resolution infrared spectroscopy of planetary atmospheres. Astron. Soc. Pacific. Pub., 95, 691–699.
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