Abstract

In the present work, we analyze acousto-optic (AO) interactions between acoustic waves (AW) and circularly polarized optical eigenwaves in gyrotropic crystals. We find that the AO diffraction of circularly polarized eigenwaves can be divided into six different interaction types. Contrary to the AO interactions analyzed earlier for the case of linearly polarized optical eigenwaves, we distinguish three isotropic interaction types and three anisotropic ones. Moreover, unlike the isotropic AO interactions of linearly polarized eigenwaves of ${n_o} {\text -} {n_o}$ and ${n_e} {\text -} {n_e}$ interaction types, the effective elasto-optic coefficient (EEC) in the case of interactions between circularly polarized eigenwaves does not depend on the sign of an incident circular optical wave. The anisotropy of the EEC and AO figure of merit is analyzed for a particular case of lead germanate crystals, ${\rm Pb}_5{\rm Ge}_3{{\rm O}_{11}}$. We demonstrate that the maximal AO figures of merit are achieved for type I isotropic diffraction at the quasi-longitudinal AW. Our calculations are confirmed by the experimental data obtained for the EEC using the Dixon–Cohen method. The experiment is concerned with the AO interactions of circular eigenwaves in ${\rm Pb}_5{\rm Ge}_3{{\rm O}_{11}}$.

© 2021 Optical Society of America

Acousto-optic interaction between circularly polarized optical eigenwaves: example of AgGaS₂ crystals

Mys Oksana, Martynyuk-Lototska Iryna, Pogodin Artem, Dudok Taras, Adamenko Dmitro, Krupych Oleh, Skab Ihor, and Vlokh Rostyslav
Appl. Opt. 58(22) 6012-6018 (2019)

Experimental determination of full matrices of the piezo-optic and elasto-optic coefficients for Pb₅Ge₃O₁₁ crystals

Iryna Martynyuk-Lototska, Oksana Mys, Taras Dudok, Bohdan Mytsyk, Natalya Demyanyshyn, Myroslav Kostyrko, Dmitro Adamenko, Mikhaylo Trubitsyn, and Rostyslav Vlokh
Appl. Opt. 59(22) 6717-6723 (2020)

Effect of deviation from purely transverse and longitudinal polarization states of acoustic waves on the anisotropy of acousto-optic figure of merit: the case of Tl₃AsS₄ crystals

Oksana Mys, Dmitro Adamenko, Oleg Krupych, and Rostyslav Vlokh
Appl. Opt. 57(28) 8320-8330 (2018)

Anisotropy of acousto-optic figure of merit for the case of a Bragg-diffracted wave propagating along an optic axis in optically biaxial crystals: Tl₃AsS₄ crystals

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Appl. Opt. 59(13) 4022-4029 (2020)

Anisotropy of acousto-optic figure of merit for LiNbO₃ crystals: anisotropic diffraction

Oksana Mys, Myroslav Kostyrko, and Rostyslav Vlokh
Appl. Opt. 55(9) 2439-2450 (2016)