Abstract

The problem of a reflected Gaussian beam after it has propagated through an inhomogeneous medium is studied. The characteristics of the displacement of the beam are described in detail. Three-layered media composed of two different homogeneous media and a finite stratified medium, whose permittivity decreases linearly with distance, are considered. The amount of the beam displacement obtained by this theory is much larger than that predicted by the conventional Goos–Hänchen shift.

© 1978 Optical Society of America

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