Nonlinear optical phenomena

Four-wave interactions in an active XeCl plasma

Yu. K. Verevkin, È. Ya. Daume, V. N. Petryakov

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: A problem of the four-wave interaction of radiation in a three-level medium, where the lower working level is a repulsive one, is solved. This situation is characteristic of UV-active excimer molecules. The solution to this problem is compared to the results obtained for a two-level model. The coefficient of reflection into a conjugate wave is measured as a function of the small-signal gain in an active XeCl excimer plasma. An influence of the four-wave interaction on the characteristics of optical amplifiers and master oscillators operating with narrow-band radiation is observed.

PACS: 42.65.Hw

Received: 04.04.2002

 English version: Quantum Electronics, 2003, 33:1, 76–80

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