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Transmission of Optical and Terahertz Radiation Through Subwavelength Hole Arrays

In this paper the scattering characteristics are calculated with the technique based on the volume integral equations. The Galerkin method is applied to reduce these equations to a set of second-order differential ones with constant coefficients in field functionals. Full-wave analysis is performed. Numerical results demonstrate surface-plasmon-enhanced transmission of electromagnetic radiation and are in a good agreement with published experimental data.