Integrated characteristics of the intermode striction interaction of electromagnetic and acoustic oscillations in spherical resonators have been studied. Selection rules are established and integrated striction interaction characteristics are calculated with consideration for the vector character of the fields and the electrostriction tensor anisotropy. There was good agreement between the calculated and experimental data on striction parametric excitation of radial elastic oscillations by UHF pumping in potassium tantalate dielectric resonators.
Department of Physics of Oscillations, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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