Exact scattering theory for waves at a slab made of a N-layer medium whose layers are perpendicular to the boundary surfaces of the slab. - art. no. 61800J

The scattering of electromagnetic waves by a slab whose refractive index is changing along its boundary planes is exactly calculated in a closed analytical form. The key feature of the calculation is the introduction of a new set of modes. As an specific example the reflected and transmitted field generated by the interaction of an incoming plane wave by a N-layered medium whose layers are perpendicular to the boundary planes of a slab are given.