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A new approach is proposed to obtain the dispersion characteristics of finite-extent photonic crystals. The method provides (w - k) diagram and information on the effective constitutive parameters of the structure and is applicable for general photonic crystals, that is, 1D, 2D and 3D photonic crystals with any kind of defects. The method utilizes the reflection data due to an incident plane wave...
A novel approach to find the effective electric and magnetic parameters of finite periodic structures is proposed. The method uses the reflection coefficients at the interface between a homogenous half-space and the periodic structure of different thicknesses. The reflection data are then approximated by complex exponentials, from which one can deduce the wavenumber, and the effective electric and...
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