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THE NONCOLLINEAR ACOUSTO-OPTICAL FILTRATION OF POLYCHROMATIC BESSEL LIGHT BEAMS IN UNIAXIAL CRYSTALS

Abstract

The noncollinear acousto-optic filtration of quasi-nondiffracting Bessel light beams in uniaxial crystals have been investigated. The coupled wave equations for vector amplitudes of the incident Bessel light beam of o-type and of the diffracted beam of e-type are obtained. The expression is found for the diffraction efficiency depending on parameters of the interacting Bessel beams of o- and e-types and also on the value of overlap integrals. Using the overlap integrals it is shown that no matter the order of the Bessel light beams in the transversal phase-matching conditions of the diffracted waves in the range of optical spectrum of 0.4-1.1 mm for paratellurite crystals the transmission bandwidth of ~0.6 nm is reached.

About the Authors

G. V. Kulak
Mozyr State Pedagogical University named after I. P. Shamiakin
Russian Federation


G. V. Krokh
Mozyr State Pedagogical University named after I. P. Shamiakin
Russian Federation


P. I. Ropot
B. I. Stepanov Insitute of Physics of the National Academy of Sciences of Belarus
Russian Federation


O. V. Shakin
State University of Aerospace Instrumentation
Russian Federation


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Review

For citations:


Kulak G.V., Krokh G.V., Ropot P.I., Shakin O.V. THE NONCOLLINEAR ACOUSTO-OPTICAL FILTRATION OF POLYCHROMATIC BESSEL LIGHT BEAMS IN UNIAXIAL CRYSTALS. Zhurnal Prikladnoii Spektroskopii. 2018;85(3):486-491. (In Russ.)

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ISSN 0514-7506 (Print)