Three Dimensional Mesh-Free Spectral Method Analysis of Optical Structures

A new and efficient three dimensional multi-domain spectral method formulation is developed to simulate and analyze optical structures. The formulation is mesh free and functional expansion based where the unknown physical quantities are approximated by expansions by preselected basis sets. The method is demonstrated by application to modal behavior in several optical structures. To demonstrate the validity and the accuracy of the presented method, it is compared with various published results and the comparisons validates the accuracy of the presented method.