High-accuracy polarimetric studies on lead germanate single crystals

Abstract

A high-accuracy polarimetric technique has been used for the characterization of a lead germanate ferroelectric single crystal. The measurement results of the linear and circular birefringence in the [010] direction at a wavelength of 633 nm under the influence of an electric field are presented. Gyration–electric field hysteresis loops at alternative crystal positions in the polarization system have been used to determine the ellipticity of the eigenwaves. A temperature dependence of the gyration tensor component g 11 in the temperature range of 300–450 K was found.

Optical rotation in the lithium triborate nonlinear crystal

“…The relations for 0 0i , 0 1i and 0 2i (where i = 1, 2 stands for two neighbouring wavelengths 1 and 2 ) are as follows (Shopa et al, 2021):…”