Thin-Film Nonlinear Optical Crystals for Intracavity Electro-Optic Modulation

摘要

Methods of preparation of single-crystal 4-N,N-dimethylamino-4 '-N '-methyl stilbazolium tosylate (DAST) films with a thickness of several micrometers, designed for electro-optic modulation, have been analyzed. Thin-film single crystals have been obtained, the shape and absorption spectrum of which confirm their crystal structure of the "red" DAST crystal form. Homogeneous luminescence in the polarization-contrast regime indicates their single crystallinity and uniform orientation. These materials are designed for intracavity modulation of laser radiation.