Diffraction of displaced Gaussian light beams on ultrasound in paratellurite crystals
https://doi.org/10.29235/1561-2430-2024-60-2-146-152
Abstract
The Bragg diffraction of displaced Gaussian light beams on a slow shear ultrasonic wave in paratellurite crystals, in which the beam energy is efficiently transferred from the zero diffraction order to the first, is investigated. It is established that circularly polarized light beams should be used to optimize the energy exchange of diffracted light beams in the considered geometry of acousto-optic interaction. It is shown that the diffracted beams have the form of displaced Gaussian beams, the spatial structure of which is determined by the displacement parameter of the incident beam and the ultrasound power.
Keywords
displaced Gaussian beam,
Bragg diffraction of light,
diffraction efficiency,
uniaxial gyrotropic crystal,
paratellurite crystal
Supporting agencies: The work was carried out within the framework of the task under the program of the Union State “Component-F” (research code “Bessel” of the Russian Federation and the Republic of Belarus).
About the Authors
G. V. Kulak
Mozyr State Pedagogical University named after I. P. Shamyakin
Belarus
Belarus
Gennadii V. Kulak – Dr. Sc. (Physics and Mathematics), Professor, Professor of the Department of Physics and Mathematics
28, Studentskaya Str., 247760, Mozyr
P. I. Ropot
B.I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Peter I. Ropot – Ph. D. (Physics and Mathematics), Associate Professor, Leading Researcher
68-2, Nezavisimosti Ave., 220072, Minsk
O. V. Shakin
State University of Aerospace Instrumentation
Russian Federation
Russian Federation
Oleg V. Shakin – Dr. Sc. (Engineering), Professor, Professor of the Department of Design and Technology of Electronic and Laser Means
67, Bol’shaya Morskaya Str., 190000, Saint Petersburg
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