Vol. 33, Issue 2-3, pp. 237-249
Keywords
TM-polarization, grating, periodic medium, diffraction
Abstract
Taking advantage of the coupled waves method, a system of linear differential equations with constant coefficients has been obtained which describes the diffraction of a plane TM-polarized optical wave on a grating. The electric field strength was used as a variable. For such a choice of a variable, only the coupling between the adjacent coupled waves appears in the system of equations, which results in a substantial simplification of the system.