Brief Communications

Correlation interferometry of scattered laser radiation

V. P. Tychinskii


Abstract: A description is given of a method for determining the fluctuating parameters of a scattered wave (amplitude, phase, and polarization) from the correlation functions of the photocurrent generated in a double-beam interferometer. It is shown that antisymmetric (relative to the carrier frequency) components of the mutual spectra can be separated and small frequency shifts can be detected. Asymmetric spectra with a shift of ~10 mHz are reported for a nematic liquid crystal in the dynamic scattering regime.

UDC: 621.373.826

PACS: 78.35.+c, 61.30.-v

Received: 13.07.1982

 English version: Soviet Journal of Quantum Electronics, 1983, 13:6, 807–809

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