COMPUTATION OF THE ELECTROMAGNETIC HARMONICS GENERATION BY STRATIFIEDSYSTEMS CONTAINING NONLINEAR LAYERS

We propose a computational technique to evaluate the reflectivity and the transmission of the harmonics generated by a planar-stratified mat erial containing nonlinear layers. Maxwell's equations are solved and the scattering boundary conditions are implemented using a transfer ma trix technique. As our goal beyond this study is to model sum-frequenc y generation spectra, our approach is limited to second-order processe s. The great advantage of this algorithm is that owing to a self-consi stent procedure the nonlinear scattering problem is reduced to the rep eated solving of linear equations. (C) 1998 John Wiley & Sons, Inc.