Abstract
A new wave-vector space method of finding electromagnetic wave propagation in bounded media without using boundary conditions is applied to finding surface waves. The method is demonstrated by finding the complete solution of the surface polariton wave for a cubic dielectric crystal. The three eigenvectors of the wave equation are found as a step in the method. This gives a convenient way of showing that only the TM mode is freely propagating, while the TE and longitudinal modes are not. The unique capability of the method in treating wave-vector-dispersive interactions for which the boundary conditions are typically not known is pointed out.
© 1996 Optical Society of America
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