Collinear Acousto-Optical Transformation of Bessel Light Beams in Biaxial Gyrotropic Crystals

The collinear acousto-optical transformation of Bessel light beams in biaxial gyrotropic crystals into two annular, internal conical refraction beams with orthogonal elliptical polarization is studied. It is found that the diffraction efficiency is maximal (~50–60%) for low ultrasound intensities an...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2016-05, Vol.83 (2), p.283-287
Main Authors: Belyi, V. N., Kulak, G. V., Krokh, G. V., Shakin, O. V.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Physics
Physics and Astronomy
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Summary:The collinear acousto-optical transformation of Bessel light beams in biaxial gyrotropic crystals into two annular, internal conical refraction beams with orthogonal elliptical polarization is studied. It is found that the diffraction efficiency is maximal (~50–60%) for low ultrasound intensities and varies slightly with further increases in acoustic power. At high ultrasound intensities, the intensities of the transmitted and diffracted annular beams differ insignificantly. The possible use of this acousto-optical interaction for creating collinear tuneable narrow-band acousto-optical filters at low ultrasonic frequencies is demonstrated.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-016-0282-5