Conclusions
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1.
As the result of these measurements, it was shown that nitrobenzene can provide light modulation at 1010cps.
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2.
The value of the relaxation time of the nitrobenzene molecules is comparable to that obtained by means of dispersion of electromagnetic waves at the same frequency.
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3.
A greater depth of modulation can be obtained by a better choice of the dimensions and design of the cell, by raising the power of the UHF generator and by cooling the cell during operation.
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4.
This method of determining the relaxation time of nitrobenzene can also be used for determining the relaxation time of other substances.
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Literature cited
I. L. Fabelinskii, Izvest. AN SSSR, Ser. Fiz., 9 (1945).
W. Hanle and O. Z. Märks Phys., 114 (1939).
Transmission Lines for Centimeter Waves [in Russian] (Izd. Sovetskoe Radio, Moscow, 1951).
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Simkin, G.S., Naberezhnykh, V.P. & Lukin, I.V. Modulation of light by means of an ultrahigh frequency (1010cps). Meas Tech 3, 694–697 (1960). https://doi.org/10.1007/BF00975741
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DOI: https://doi.org/10.1007/BF00975741