s-Polarized Guided and Surface Electromagnetic Waves Supported by a Nonlinear Dielectric Film

摘要

Studied are the s-polarized nonlinear guided and surface electromagnetic waves supported by a three-layer structure consisting of nonlinear dielectric film, characterized by a Kerr-like three-layer structure consisting of a nonlinear dielectric media. We present numerical results for the effective wave number of these modes as a function of the intensity of the electric field at the lower surface of the nonlinear film for both self-focusing and self-defocusing nonlinear films. A double-valued relation between the effective wave number and the electric field intensity is obtained for certain ranges of the parameters characterizing the structure under investigation. Asymmetric modes in this symmetric structure are found to occur when the nonlinear film is made from a self-defocusing dielectric material. Keywords: Nonlinear guided electromagnetic waves; Nonlinear surface electromagnetic waves; Dielectric films; Kerr-like dielectric media; Reprints. (jhd)