Nonlinear surface waves in a left handed material (LHM) and superlattices(LANS) wave-guide structure

摘要

The paper is concerned with the propagation characteristics of TE surface waves in a planer wave-guide structure of a lateral antiferromagnetic -non magnetic superlattices (LANS)film bounded by a nonlinear dielectric cover and a left handed substrate (LHM). In (LHM) substrate both permittivity and magnetic permeability are negative in definite frequency range. We study nonlinear dispersion properties of the TE surface waves and illustrate power flow variation with the wave index when both permittivity and magnetic permeability are negative. We found that surface waves are backward traveling and the wave power variation with the wave index shows bistability behavior.