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Opt Lett. 1992 Aug 1;17(15):1052-4.

Raman-assisted polarization beats in time-delayed four-wave mixing.

Abstract

We demonstrate a method for determining the phase of the third-order susceptibility, chi ((3)), in the proximity of a Raman resonance. The measurements were based on the phenomenon of polarization beats, which was exploited in a time-delayed four-wave-mixing experiment with bichromatic beams. The phase dispersion of chi((3)) was studied close to resonance with the 655.7-cm(-1) vibrational mode of carbon disulfide.

PMID:
19794716
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