Numerical Technique to Calculate Propagation Constants for the Problem of Polarized Wave Propagation in a Layer with Nonlinear Permittivity

We consider a plane layered waveguide structure. The layer is located between two half-spaces with constant permittivities. The permittivity inside the layer is an arbitrary function of the electric field intensity. The propagation of polarized TM electromagnetic waves in such a structure is considered. Surface waves propagating along the boundaries of the layer are sought-for. We suggest a numerical approach to calculate propagation constants. Numerical results are presented.