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— An application of the invariant imbedding method to describe the interaction of 3D electromagnetic field with 2D photonic crystal of finite thickness, formed by a dielectric circular cylinder or square bars, is considered in this paper. Matrix coefficients of transmission and reflection for waves at different angles of incidence were calculated taking into account different types of polarization and non-coplanar diffraction.

Model of 3D electromagnetic field with 2D periodic structures interaction