УДК: 534.8, 535.42

Influence of light-induced gratings on acousto-optic interaction of Bessel light beams in uniaxial gyrotropic crystals

Kulak, G.V., Krokh, G.V., Ropot, P.I., Shakin, O.V.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Кулак Г.В., Крох Г.В., Ропот П.И., Шакин О.В. Влияние светоиндуцированных решёток на акустооптическое взаимодействие бесселевых световых пучков в одноосных гиротропных кристаллах // Оптический журнал. 2017. Т. 84. № 2. С. 103–109.

Kulak G.V., Krokh G.V., Ropot P.I., Shakin O.V. Influence of light-induced gratings on acousto-optic interaction of Bessel light beams in uniaxial gyrotropic crystals [in Russian] // Opticheskii Zhurnal. 2017. V. 84. № 2. P. 103–109.

For citation (Journal of Optical Technology):

G. V. Kulak, G. V. Krokh, P. I. Ropot, and O. V. Shakin, "Influence of light-induced gratings on acousto-optic interaction of Bessel light beams in uniaxial gyrotropic crystals," Journal of Optical Technology. 84(2), 146-151 (2017). https://doi.org/10.1364/JOT.84.000146

Abstract:

The influence of light-induced gratings, caused by cubic optical nonlinearity, on the Bragg diffraction of Bessel light beams by ultrasound in uniaxial gyrotropic crystals was studied theoretically. It was shown that, when Bessel light beams are used, the threshold for a substantial manifestation of optical nonlinearity during Bragg diffraction is significantly reduced. It was established that the efficiency of the acousto-optic interaction increases with increasing light intensity in the anti-Stokes regime of diffraction and decreases monotonically in the Stokes regime. Satisfactory qualitative agreement between the theoretical and experimental dependences of the diffraction efficiency on the light and ultrasound intensities was demonstrated using a uniaxial gyrotropic quartz crystal.

Keywords:

ultrasound wave, gyrotropic crystal, light-induced grating, Bessel light beam, Bragg diffraction, diffraction efficiency

OCIS codes: 190.2055; 190.4720; 230.1040

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