Highly effective acoustooptic diffraction of light by multifrequency sound using a nonaxial deflector |
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Authors: | S N Antonov A V Vainer V V Proklov Yu G Rezvov |
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Institution: | 1. Institute of Radio Engineering and Electronics, Russian Academy of Sciences, pr. Vernadskogo 88, Fryazino, Moscow oblast, 141190, Russia 2. Mendeleyev Russian Chemicotechnological University, Novomoskovsk, Tula oblast, 301665, Russia
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Abstract: | The subject of investigation is multiple-beam Bragg diffraction of light, i.e., the formation of a highly effective multiple-beam field representing a superposition of equidistant monochromatic acoustic waves with determinate phases and amplitudes using a nonaxial TeO2 deflector. It is shown theoretically and experimentally that the anisotropic character of interaction considerably changes the basic parameters of multiple-beam diffraction (compared with the isotropic case): the net diffraction efficiency grows to 100%, and the frequency band expands noticeably. A modulator splitting the initial laser radiation into five beams of equal intensity with a net efficiency approaching 100% is designed. |
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