Geodesic
Acousto-optical modulation of Bessel light beams in paratellurite crystals
Problemy fiziki, matematiki i tehniki, no. 3 (2023), pp. 16-20.

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Acousto-optical modulation of Bessel light beams on ultrasound in uniaxial gyrotropic crystals of paratellurite has been theoretically investigated. It is established that the efficiency of anisotropic Bragg diffraction of zero-order Bessel light beams is higher than that of first-order asimutally inhomogeneous beams. It is shown that the highest diffraction efficiency for a first-order Bessel beam is achieved for the acousto-optical transformation of a left-elliptically polarized light wave into a right-elliptically polarized one. The bandwidth of the device remains unchanged under optimal conditions of one hundred percent diffraction efficiency for Bessel beams of various orders and decreases with increasing acousto-optic interaction length.
Keywords: acousto-optical interaction, Bessel light beam, light modulation.
Mots-clés : gyrotropic uniaxial crystal 
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G. V. Kulak; T. V. Nikolaenko; P. I. Ropot; O. V. Shakin. Acousto-optical modulation of Bessel light beams in paratellurite crystals. Problemy fiziki, matematiki i tehniki, no. 3 (2023), pp. 16-20. http://geodesic.mathdoc.fr/item/PFMT_2023_3_a2/

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