Dispersive effects on the Brewster angle in moving isotropic dielectrics

Abstract

A general method to study dispersive effects on the Brewster angle in moving isotropic semi-infinite dielectrics is discussed. In particular, the Brewster angle and the index of refraction of NaCl are calculated as functions of its velocity. A law of dispersion without absorption, which is used in ionic crystals and contains the Lyddane–Sachs–Teller relation, is assumed. Two cases are considered: direction of motion parallel to the dielectric–vacuum interface and direction of motion perpendicular to the same interface.