DISTURBANCE OF SECOND-ORDER COHERENCE BY INTERACTION.

Leonel N. Menegozzi

S. Chopra, Jai Paul Dudeja

Catherine Bréchignac, Ph. Cahuzac, Anne Débarre

Two complementary methods have been used to investigate light induced collisional energy transfers for a dipole-dipole interaction. A high resolution spectral profile study in a Na-Ca mixture has confirmed the assumption of a universal profile for a given interaction, the measurement of polarization ratios in a Eu-Sr mixture has confirmed the assumption that such processes may partially preserve the coherences induced by an external polarized field.

Peter E. Gordon

E. Wolf

Abstract : A brief review is presented of the basic notions and results of a theory formulated within the framework of classical optics to explain optical coherence phenomena. A stochastic description of light is given. Coherence effects of the second and fourth order are also presented.