Nonlinear optical phenomena

Anomalous components of the scattering under the conditions of a developed instability of laser radiation in a resonant medium

A. G. Leonov, A. A. Panteleev, A. N. Starostin, D. I. Chekhov

Moscow Institute of Physics and Technology

Abstract: Experimental and theoretical investigations were made of the characteristics of an 'anomalous' component of the scattering of high-intensity laser radiation in a resonant medium (sodium vapour) observed earlier in the frequency range ω_L > ω_D2. The appearance of this component had been attributed by other authors to parametric downconversion. Contrary to this interpretation, the component in question was observed also at frequencies of ω_L < ω_D1. An analysis showed that the generation of this component and its properties can be explained fully by a four-wave interaction in a gas of three-level atoms.

PACS: 42.25.Fx, 42.60.Mi

Received: 02.08.1993

 English version: Quantum Electronics, 1994, 24:2, 154–157

Bibliographic databases:

•