Spatial quasi-periodic oscillations of the refractive index in an optically dense medium with a closed excitation contour
К. А. Баранцев, A. N. Litvinov
A closed contour of excitation (Δ-scheme) of a three-level atom in an optically dense medium under the action of two optical fields and a microwave field has been studied. It is found that phase relations between exciting fields in this medium play a determining role. It is established that, under certain conditions, in an optically dense Δ-atom medium exhibits a quasi-periodic dependence of the refractive index on the coordinate. The conditions under which this dependence is most pronounced are determined.
Journal of Experimental and Theoretical Physics•Apr 1, 2014•8 citations