Shift of Brewster's scattering angle

The multiple scattering effect at Brewster's scattering angle, which is the direction of a dip in a p-polarized scattering profile from a slightly random dielectric surface, is studied by using the stochastic functional approach. It is shown that multiple scattering processes cause a shift in Brewster's scattering angle, and that the ratio of co- to cross-polarized scattering does not depend on the roughness of the surface at Brewster's scattering angle of the first order scattering. We also investigate Brewster's scattering angle in lossy media, and show that the shift due to the multiple scattering effect depends on the loss of the scatterer.