Variation of the polarization ratio for rotationally inelastic collisions with laser selected velocity.

Autor: Fell, Christopher P., McCaffery, Anthony J., Reid, Katharine L., Ticktin, Anton
Předmět:
Zdroj: Journal of Chemical Physics; 10/1/1991, Vol. 95 Issue 7, p4948, 10p
Abstrakt: We extend the technique of velocity selection by narrow linewidth laser excitation by measuring the polarization of emission following energy transfer as a function of selected velocity. We apply this to rotationally inelastic collisions in A1ΣuLi2–Xe and find that for most transitions, there is a noticeable decrease in the circular polarization ratio at the center of the Doppler profile. We speculate as to whether the reason for this is dynamical, geometrical, or a combination of the two. We are able to deconvolute cross sections for the transfer of orientation as a function of relative speed which can then be compared with cross sections for the transfer of population. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index