Nonlinear selective reflection of bichromatic light from interface between transparent dielectric and resonant gas
Velichanskii L. , Gamidov R. G. , Pak G. T. , Sautenkov V. A.
The differential reflection spectrum of one component of intense bichromatic light at an interface between glass and cesium vapor has been studied experimentally. Resonances have been detected in the nonlinear variation of the reflection coefficient. An explanation proposed for the formation of these resonances incorporates four mechanisms: saturation of an optical transition, a collision with a resonant transfer of excitation, a velocity-selective optical pumping of atoms, and a coherent capture of populations.