STIMULATED RAYLEIGH-LINE WING SCATTERING IN NEMATIC LIQUID-CRYSTALS

The influence of self-focusing on the backward stimulated Rayleigh-lin e wing scattering (SRWS) has been investigsted in the quasi-optical ap proximation. It has been shown that the characteristic longitudinal sp atial scale of stimulated and the gain increment depend on the paramet er alpha = 1-P/P(cr), where P is the pump power and P(cr) is the criti cal power of self-focusing. The correlation function and gain incremen t of the stimulated scattering radiation in isotropic-phase nematic li quid crystals have been derived. Peculiarities of SRWS correlation fun ction behavior near the phase transition are discussed.