The propagation of nonlinear electromagnetic TE surface waves in magnetic superlattices (LANS) film

Abstract

Electromagnetic surface waves in magnetic superlattices (LANS) film bounded by a nonlinear dielectric cover are discussed as a function of the film parameters. Magnetic superlattices (antiferromagnetic-non magnetic) which are linear frequency-dependent gyromagnetic media are described with an effective - medium theory, we found that, surface waves are reciprocal for Ho= 0 and non reciprocal for Ho≠ 0. We also calculate and illustrate the variation of the wave index with the power flow for various values of the thickness of (LANS) t and the magnetic fraction f1 where f1 is the fraction of the superlattice occupied by the magnetic material.