Reciprocal and optical theorems of grating theory - Case of two-layered homogeneous media with a periodic rough boundary

摘要

This report discusses the reciprocal and the optical theorems for plane waves scattering from two-layered homogeneous media with a periodic rough boundary. Based on the shadow theory, the reciprocity and symmetry of the scattering factors and diffraction efficiencies are newly presented. For two homogeneous media with a periodic boundary, numerical examples of the reciprocal and the optical theorems, and scattering factors are calculated by means of the method of the image Green's function.