Abstract
Effects caused by fast laser frequency sweeping across absorption lines are investigated. Oscillations in the time dependence of intensity of radiation generated by the medium, which are caused by beats between oscillations at variable excitation frequency and constant eigenfrequencies, are discovered. The time intervals between local maxima of the oscillations are inversely proportional to the difference between the eigenfrequency of the atomic oscillator and the instant frequency of the external radiation. The method of using fast frequency sweeping for determining indices of absorption at high optical densities (k 0 z ~ 100) is proposed.
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Original Russian Text © S.N. Andreev, V.N. Ochkin, N.V. Pestovskii, S.Yu. Savinov, 2015, published in Optika i Spektroskopiya, 2015, Vol. 119, No. 3, pp. 411–417.
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Andreev, S.N., Ochkin, V.N., Pestovskii, N.V. et al. Coherent spectroscopy with fast frequency swept lasers. Opt. Spectrosc. 119, 385–391 (2015). https://doi.org/10.1134/S0030400X15090027
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DOI: https://doi.org/10.1134/S0030400X15090027