STIMULATED RAYLEIGH-WING SCATTERING WITH 2-BEAM COUPLING IN CS2

Backward stimulated Rayleigh-wing scattering as a result of simultaneo us introduction of two beams, a pump and a probe, in CS2 has been obse rved. The dependence of this scattering on delay times, angle, and pol arization states was measured. A novel phenomenon consisting of the ge ometric deviation of the scattered beam from its previous backward dir ection when a weak probe beam is added to the pump beam has been expla ined by consideration of the large bandwidth scattering in the spectru m. Frequency displacement and simultaneous amplification were observed .