Low-frequency plane wave diffraction on a two-layer grating

Abstract

In this paper the problem of TE and TM plane wave diffraction from a two-layer grating in low-frequency case is presented. The problem is solved using the network model. Numerical results for the reflection coefficient of the lowest (n=0) mode versus frequency are given and compared to available results from literature.

Keywords

• diffraction
• two-layer grating
• network model