Photodeflection spectroscopy of magnetoactive superlattices irradiated by Bessel–Gaussian light beams

Abstract

The mechanism for the formation of photodeflection signals in magnetoactive superlattices irradiated by polarized modes of Bessel–Gaussian light beams is studied. The feasibility of controlling the spatial distribution of the temperature distribution in test samples with subsequent thermo-optical excitation of photodeflection signals is established. A method is proposed for nondestructive monitoring of the geometrical parameters of magnetoactive superlattices by means of laser photodeflection spectroscopy.