Effective Boundary Conditions for a 2d iNhomogeneous Nonlinear Thin Layer Coated On a Metallic Surface - Abstract

Abstract

Approximate boundary conditions for an inhomogeneous nonlinear thin layer coated on a perfectly conducting plane are derived through an asymptotic expansion of the field in power series of the thickness. Numerical results show that the second order approximate boundary condition gives a sufficient accuracy for all incident angles when the coating thickness is much smaller than the wavelength. The case when the nonlinear thin layer is coated on a curved metallic surface is also considered.