General scheme for electromagnetic reflection and transmission for composite structures of complex materials

A time-harmonic electromagnetic planewave obliquely incident on a stratified composite structure consisting of different types of complex (bianisotropic) media is considered. A modified invariant imbedding method is used to calculate the reflection and transmission, and the internal fields are calculated through a Green function approach. A characteristic feature of the approach is that it is based on a wave splitting that is not related to the media which make up the composite structure, but is always defined with respect to a vacuum. Several advantages of this approach are identified and it is compared to other approaches. Numerical results for the co- and cross-polarised reflection and transmission coefficients for TE and TM modes for a composite structure are presented