Birefringence arising from the reorientation of the polarizability anisotropy of molecules in collisionless gases
- 1 February 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 13 (2) , 813-829
- https://doi.org/10.1103/physreva.13.813
Abstract
The refractive-index change in a collisionless gas is evaluated from the Stark shifts of the rotational energy levels that arise from the polarizability anisotropy. In the limit of an extremely-short-duration excitation, a multilevel coherent effect results in delayed refractive-index bursts. Both stationary and transient responses of this birefringence to an optical field are considered for symmetric-top molecules, with particular emphasis on the special case of linear molecules.Keywords
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