Effect of the Transverse Divergence of the 'Acoustic' Beam on the Efficiency of Acoustooptic Interaction

摘要

The factor of a decrease in acoustooptic interaction due to transverse divergence of an elastic wave is analyzed as a function of the size of the transducer and the distance to the light beam. The diffraction distribution of the amplitude of the acoustic field is obtained numerically with the help of the Fourier transform in the approximation of an isotropic medium for a one-dimensional emitter.