Laser Physics

Signal dynamics of the photothermal response in three-level media

М. Г. Кучеренко, A. P. Rusinov

Published Aug 30, 2006• 0 citations

Abstract

In this paper, we consider the process of optical recording and decay of transient spatial structures in a system with a nonlinear response caused by incoherent saturation of three-level centers. The main attention is devoted to the thermal mechanism of phase recording in media with a temperature-independent heat conductivity. The relaxation of an inhomogeneous temperature field and the diffraction of a probe beam from the transient structure are studied. The designed theoretical model satisfactorily describes the obtained experimental results and allows the evolution of a temperature field to be viewed.

DOI: 10.1134/s1054660x06090052

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