Abstract
The polarization properties of backward-box, degenerate four-wave mixing from OH molecules are measured in a flame and compared with theory. Ratios of signal intensities for different laser polarizations are shown to exceed perturbation-theory predictions for a closed two-level system when optical intensity gratings are formed in the interaction volume. These results are shown to be inconsistent with population-nonconserving effects and are attributed to scattering from quenching-induced thermal density gratings.
© 1994 Optical Society of America
Full Article | PDF ArticleMore Like This
P. Ewart and S. V. O’Leary
Opt. Lett. 11(5) 279-281 (1986)
Thomas Dreier and David J. Rakestraw
Opt. Lett. 15(1) 72-74 (1990)
D. J. Rakestraw, R. L. Farrow, and Thomas Dreier
Opt. Lett. 15(12) 709-711 (1990)