Analysis of Scattering from Surface Relief Gratings in Conical Mounting

Abstract

We analyze the scattering problems of the dielectric gratings in conical mounting by applying Inverse Rule to matrix eigenvalue method that is using the Fourier series expansion for relative permittivity and the spatial harmonics expansion for electromagnetic fields.The surface relief profile of the dielectric gratings can be expressed by using multilayered step method.The convergence of our method for surface relief gratings is faster than that of the conventional method.Moreover, we analyze about the characteristics of scattering electromagnetic wave by using this method.