Light-induced drift of molecules in atomic gases

Larry A. Viehland

Physica A: Statistical Mechanics and its Applications, 1992, vol. 184, issue 1, 98-126

Abstract: A kinetic theory is presented for the light-induced drift of molecules with degenerate energy levels that are immersed in a large excess of an atomic buffer gas and excited, in a velocity-selective way, by a weak, linearly polarized laser. An iterative procedure is outlined for systematically solving the kinetic equation to obtain results, directly from the molecule/buffer interaction potentials, that have converged within some predetermined level of accuracy. When applied to the model of strong collisions, the first iteration yields the exact results for low laser intensities. The general formalism suggests a new model of light-induced drift that provides for velocity-dependent collision frequencies and accounts for recent anomalous results in ethene.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:184:y:1992:i:1:p:98-126

DOI: 10.1016/0378-4371(92)90160-R

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