A mathematical model of the propagation of two-dimensional linearly polarized Gaussian light beams taking into account all components of the linear electrooptic tensor was constructed for calculating nonlinear optical phenomena in a strontium–barium niobate photorefractive crystal. The dependence of the light-beam intensity on its initial polarization azimuth at the entrance to the crystal and on the direction vector in the crystallographic coordinate system of an external electric field applied to a photorefractive crystal was investigated. The conditions under which the focusing of two-dimensional Gaussian light beams at the exit from the crystal was maximal were determined.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 89, No. 6, pp. 884–889, November–December, 2022. https://doi.org/10.47612/0514-7506-2022-89-6-884-889.
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Davydouskaya, V.V., Naunyka, V.N. & Velichko, V.A. Optimal Focusing Conditions for Two-Dimensional Gaussian Light Beams with Arbitrary Input Polarization in a Strontium–Barium Niobate Photorefractive Crystal. J Appl Spectrosc 89, 1137–1142 (2023). https://doi.org/10.1007/s10812-023-01478-x
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DOI: https://doi.org/10.1007/s10812-023-01478-x