Polarization Features of Anisotropic Bragg Light Diffraction on Transmissive Holographic Phase Gratings

Abstract

We established that for anisotropic Bragg light diffraction on holographic phase gratings for significant perturbation amplitudes of the refractive index of the medium, in the transmitted diffraction orders there is a significant rotation of the polarization plane of the diffracted wave, which is absent in the reflected diffraction orders. It is shown that periodic changes in the transmission coefficients of diffracted waves with a change in the azimuth of polarization of incident light are due to a significant difference in the Fresnel reflection coefficients at the layer boundaries for s- and p-components of incident light; these periodic changes are absent in the reflected diffraction orders.