Nonlinear Electromagnetic TM Surface Waves in Magnetic Superlattices(LANS)Film

Abstract

Abstract The propagation characteristics of nonlinear TM surface waves at a lateral antiferromagnetic/nonmagnetic superlattices (LANS) film and a nonlinear dielectric cover have been investigated. LANS are linear frequency- dependent gyromagnetic media. They are described with an effective- medium theory. It is found that the frequency – wave index variation increases with the magnetic fraction . We also calculate and illustrate the variation of the wave index with the power flow for various values of . We found that increases the power of the nonlinear TM surface waves. Keywords: Nonlinear Waves, Wave-guides, Dispersion relation, Magnetic Superlattices.