Study of the characteristics of force fields sources of elastic waves in optically transparent piezoelectric crystal
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Abstract
With the help of Hankel integral transforms was received and investigated solution of the boundary problem of the electric field, which is created in the volume of anisotropic permittivity by a piezoelectric crystal in form of annular electrode located on the surface. It was identified and studied surface and bulk densities of Coulomb forces that are generated by the electric field of annular electrode in Z-cut of lithium niobate. It is shown that Coulomb forces deforming piezoelectric crystal exist in a final volume limited by hemisphere, the radius of which is not more than two-three outer radii of the annular electrode. Scalar and vector potentials of Coulomb force field was identified that allows to estimate the contributions of body forces in the energy of the excited longitudinal and transverse waves.
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