Theory of acoustooptical filtration of light beams in the inhomogeneous acoustic field
- Authors: Vainer A.V.1, Proklov V.V.1, Rezvov Y.G.2, Sivkova O.D.2
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Affiliations:
- Kotel’nikov Institute of Radio Engineering and Electronics (Fryazino Branch)
- Novomoskovsk Institute
- Issue: Vol 62, No 10 (2017)
- Pages: 1152-1164
- Section: Radio Phenomena in Solids and Plasma
- URL: https://journals.rcsi.science/1064-2269/article/view/198870
- DOI: https://doi.org/10.1134/S1064226917100175
- ID: 198870
Cite item
Abstract
The theory of acoustooptical (AO) interaction between light beams in the longitudinally inhomogeneous acoustic field is constructed with allowance for conditions typical of AO filtration. In the case of smooth acoustic inhomogeneities, analytical expressions for the spatially spectral characteristic relating the spatial spectra of incident and diffracted light beams are derived. The situation where a Gaussian light beam undergoes filtration in the acoustic field excited by a rectangular transducer is discussed in detail. The narrowband quasi-collinear AO filter based on a paratellurite crystal is simulated. It is demonstrated that the maximum diffraction efficiency and transmission-function shape distortion (with respect to the plane-wave model) of the given device depend to the greatest extent on the misalignment between the directions of the group velocities of interacting light beams.
About the authors
A. V. Vainer
Kotel’nikov Institute of Radio Engineering and Electronics (Fryazino Branch)
Email: rezvov@newmsk.tula.net
Russian Federation, Fryazino, Moscow oblast, 141190
V. V. Proklov
Kotel’nikov Institute of Radio Engineering and Electronics (Fryazino Branch)
Email: rezvov@newmsk.tula.net
Russian Federation, Fryazino, Moscow oblast, 141190
Yu. G. Rezvov
Novomoskovsk Institute
Author for correspondence.
Email: rezvov@newmsk.tula.net
Russian Federation, Novomoskovsk, 301665
O. D. Sivkova
Novomoskovsk Institute
Email: rezvov@newmsk.tula.net
Russian Federation, Novomoskovsk, 301665