Nonlinear Refraction of Dielectric Single Crystals under Excitation with Ultrashort Near-Infrared Laser Pulses


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Abstract

Nonlinear refraction in a number of crystals (KGW, KGW:Eu3+, Ba(NO3)2, BaWO4, PbMoO4, and CdWO4) that are promising for excitation of multifrequency stimulated Raman scattering is investigated by a single-beam Z-scan method. Picosecond laser pulses with a wavelength of 1064 nm generated by a YAG:Nd3+ laser were used for excitation of nonlinear optical processes. The values of n2 are compared depending on the type of the crystal, optical-axis orientation, and impurity concentration.

About the authors

A. I. Vodchits

B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus

Email: gorelik@sci.lebedev.ru
Belarus, Minsk, BY-220072

V. S. Gorelik

Lebedev Physical Institute of the Russian Academy of Sciences; Bauman Moscow State Technical University

Author for correspondence.
Email: gorelik@sci.lebedev.ru
Russian Federation, Moscow, 119991; Moscow, 2105005

V. A. Orlovich

B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus

Email: gorelik@sci.lebedev.ru
Belarus, Minsk, BY-220072

P. A. Apanasevich

B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus

Email: gorelik@sci.lebedev.ru
Belarus, Minsk, BY-220072

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