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Journal Radioengineering №8 for 2015 г.
Article in number:
Bragg diffraction of four-color optical radiation
Keywords: acousto-optic diffraction Bragg regime four-color optical radiation
Authors:
V.M. Kotov - Dr. Sc. (Phys.-Math.), Leading Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: vmk277@ire216.msk.su G.N. Shkerdin - Dr. Sc. (Phys.-Math.), Professor, Head of Laboratory , Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: gns277@ire216.msk.su A.N. Bulyuk - Ph. D. (Phys.-Math.), Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: anb277@ire216.msk.su A.I. Voronko - Ph. D. (Phys.-Math.), Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS. E-mail: aiv277@ire216.msk.su S.A. Tikhomirov - Research Scientist, Fryazino branch of Kotel\'nikov IRE of RAS
Abstract:
It is developed a method to find the Bragg diffraction conditions for the effective acousto-optic (AO) interaction of the four-color radiation with a single acoustic wave. The method is demonstrated by the example of the diffraction of four beams with the wavelengths 0.488, 0.496, 0.514 and 0.633 mcm, which interact with a single acoustic wave propagated in the mono crystal of paratellurite. In the proposed variant the beams with the wavelengths 0.496 and 0.633 mcm are in the strong Bragg synchronism with the acoustic wave, while the other two beams diffract with the small synchronism mismatch. The experiments fulfilled with the using of the crystal of paratellurite confirm the principal theoretical conclusions.
Pages: 53-57
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