Polarization effects in stimulated Raman scattering and related phenomena

Barron, L.D. (1970) Polarization effects in stimulated Raman scattering and related phenomena. Journal of Physics B: Atomic and Molecular Physics, 3(11), pp. 1558-1568. (doi: 10.1088/0022-3700/3/11/017)

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Polarization effects in stimulated Raman and stimulated Rayleigh scattering and self focusing are investigated from the viewpoint of the scattering of polarized photons by molecules. Both stimulated vibrational Raman scattering in liquids and stimulated rotational Raman scattering in gases are considered, and it is demonstrated that the polarization changes and relative power thresholds for different laser polarizations should be somewhat different to those predicted in other theories. For example, the ellipticity eta 0 of the stimulated rotational Raman photons in the forward direction from Delta J=+or-2 transitions in gaseous symmetric top molecules is given in terms of the initial ellipticity eta 1 by sin 2 eta 0= -5/7 sin 2 eta 1, whereas conventional theories predict that eta 0 and eta 1 are equal in magnitude and opposite in sign. Furthermore it is shown that deviations from this relation could provide a measure of the degree of optical orientation of the molecules.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Barron, Professor Laurence
Authors: Barron, L.D.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of Physics B: Atomic and Molecular Physics
Publisher:IOP Publishing

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