Abstract
We present a theoretical and numerical model of light beam propagation in anisotropic and inhomogeneous dielectric structures, obtained as an extension of the scalar FFT-BPM. We solve Maxwell's equations in the Generalized Geometric Optics Approximation (GGOA), which neglects the reflected fields. This is a full-vectorial model because it takes into account the polarization effects due both to the anisotropy and to inhomogeneity of the medium. We have implemented a first version of a numerical code exploiting this method. Some preliminary tests are presented.
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