3-D integral equation analysis of guided and leaky waves on a thin-film structure with 2-D material gratings

This paper presents a 3-D integral equation analysis of guided surface waves and leaky waves on a dielectric layer structure with 2-D implanted periodic dielectric blocks. The electric fields within the implanted periodic blocks are unknowns in the moment method. The method involves a full dyadic Green´s function. The guided surface waves and leaky waves are identified as eigenvalues of a deterministic equation resulting from a moment method procedure. The analysis may deal with a variety of irregular and anisotropic implants. The analysis may also deal with layered or grounded structures through the modification of the Green´s function. The presented approach is also suitable for the analysis of photonic band gap materials.