Acousto-optic interaction with leaky surface acoustic waves in Y-cut LiTaO3 crystals |
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Authors: | Belovickis Jaroslavas Rimeika Romualdas Ciplys Daumantas |
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Affiliation: | Department of Radiophysics, Faculty of Physics, Vilnius University, Saul?tekio 9, LT-10222 Vilnius, Lithuania |
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Abstract: | The acousto-optic interaction with leaky surface acoustic wave radiation into the bulk of YX-cut LiTaO3 crystals has been investigated. The light incidence and diffraction angles corresponding to the strongest acousto-optic interaction were calculated and measured as functions of the acoustic wave frequency. The dependencies of the diffracted light intensity on the amplitude of radio-frequency voltage applied to the interdigital transducer (IDT) were studied. Our acousto-optic measurements revealed generation, by the IDTs, of slow shear bulk acoustic waves propagating at different angles depending on their frequency. A secondary acousto-optic interaction from the bulk waves radiated by the receiving IDT has been studied. |
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Keywords: | Acousto-optic interaction Leaky surface acoustic waves Bulk acoustic waves LiTaO3 crystals Light diffraction |
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