Formation of the Two-Dimensional Contour of an Image during Triple Bragg Diffraction

摘要

The possibility of formation of the 2D contour of an optical image in the first diffraction order during triple Bragg diffraction is first proposed and experimentally confirmed. Transfer functions are obtained as part of the developed model of 3D acousto-optical interaction in the gyrotropic crystal. The transfer function of the first diffraction order made it possible to identify the contour of a 2D image during its Fourier processing. These theoretical results are confirmed experimentally using triple Bragg diffraction occurring in a TeO_2 monocrystal.