Numerical Methods for Composite Dielectric Gratings Embedded with Conducting Strips Using Scattering Factors
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概要
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We propose a new analytical method for a composite dielectric grating embedded with conducting strips using scattering factors in the shadow theory. The scattering factor in the shadow theory plays an important role instead of the conventional diffraction amplitude. By specifying the relation between scattering factors and spectral-domain Green's functions, we derive expressions of the Green's functions directly for unit surface electric and magnetic current densities, and apply the spectral Galerkin method to our formulation. From some numerical results, we show that the expressions of the Green's functions are valid, and analyze scattering characteristics by composite gratings.
著者
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Yamakita Jiro
Faculty Of Computer Science And System Engineering Okayama Prefectural University
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Matsumoto Keiji
Faculty of Engineering, Osaka Sangyo University
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Wakabayashi Hideaki
Faculty Of Computer Science And System Engineering Okayama Prefectural University
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Asai Masamitsu
Faculty Of Biology-oriented Science And Technology Kinki University
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Matsumoto Keiji
Faculty Of Engineering Osaka Sangyo University
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