Wave Behavior at an Interface of a Semi-Infinite Moving Anisotropic Medium

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Abstract
The wave behavior at an interface between an isotropic medium and a moving anisotropic medium for an arbitrary plane of incidence is studied. Modified forms of Snell's law for refraction are obtained for both the ordinary and the extraordinary waves when the moving medium is uniaxially anisotropic. The critical angle for total reflection is computed for the extraordinary wave as a function of medium velocity and anisotropy. It is found that the reflected and refracted waves behave quite differently, depending on whether the moving medium is a uniaxial crystal or a magneto‐ionic plasma in an infinitely strong magnetic field. Conditions for the existence of the Brewster angle, even for a prependicularly polarized wave incident normal to the direction of medium motion, are examined. Curves for reflection coefficient are plotted vs medium velocity.