Surface polarization scattering generated from a birefringent material with rough surface

Based on a rough-surfaced model for a birefringent material with a random interface between its surface and air, we explore the relationship between the correlation area and the spatial degree of polarization of the scattered electric field and the surface-height fluctuations. The statistical properties of the scattered light and the microstructure of the anisotropic material has been investigated based on the coherence matrix. It is shown that achieving depolarization is much more difficult than reducing the coherence for the scattered light introduced by the rough surface of the birefringent material.