Backscattering enhancement of an electromagnetic wave scattered by two-dimensional rough layers

摘要

The problem of an electromagnetic wave scattering by a slab with two roughboundaries is solved by a small-perturbation method under the Rayleighhypothesis. In order to obtain a perturbative development, we use a systematicprocedure which involves integral equations called the reduced Rayleighequations. Then we will show for a dielectric slab deposited on a silver filmthat the backscattering enhancement can be produced by guided waves whichinteract with the two rough surfaces.