Acousto-optic diffraction with allowance for the influence of the acousto-optic cell boundaries |
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| Authors: | S N Antonov A V Vainer V V Proklov Yu G Rezvov |
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| Institution: | 1. Kotel??nikov Institute of Radio Engineering and Electronics, Fryazino Branch, Russian Academy of Sciences, pl. Vvedenskogo 1, Fryazino, Moscow oblast, 141190, Russia
2. Novomoskovsk Institute, Mendeleev Russian University of Chemical Technology, ul. Druzhby 8, Novomoskovsk, Tula oblast, 301665, Russia
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| Abstract: | The influence of the dimension of an acousto-optic cell in the plane orthogonal to the plane of acousto-optic diffraction on the acoustic field structure and, consequently, on acousto-optic diffraction is studied theoretically and experimentally. A method is suggested for approximate calculation of the acoustic field with regard to the acoustic column reflection from the crystal faces. Based on this method, the influence of the acousto-optic cell dimensions is analyzed in a wide range of ratios between the height of the piezoelectric transducer and the height of the crystal. A region of acoustic power concentration is predicted to arise both for parallel faces and for slight wedging. A number of statements are demonstrated with paratellurite used as an interaction medium. The results may be useful in designing acousto-optic devices. |
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