Propagation of surface electromagnetic waves along a corrugated interface between two media

An analysis is made of the problem of propagation of surface electromagnetic waves (SEW's) along a corrugated interface between two media. The problem is solved in the weak corrugation approximation. The SEW loss factor due to emission and the coefficient of coupling between the two SEW's under conditions of resonant conversion are obtained as a function of the parameters of the corrugation and the media.