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Proceedings Paper

Matrix eigenvalue method for anisotropic dielectric gratings
Author(s): Jiro Yamakita
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Paper Abstract

We present a theoretical approach for diffraction of light from highly conducting wire gratings of arbitrary cross section. The approach, based on the surface impedance boundary condition, is used to reconstruct the shape of the wires from measurements of the transmitted zeroth order efficiency as a function of wavelength. The experimental curves (S polarization) obtained in the resonance region for galvanically deposited gold gratings, are fitted to the theory by assuming that the cross section of the wires is trapezoidal. The reliability of the results is studied by comparing theoretical and measured efficiencies for P polarization. The method is used to control the shape of the wires of x-ray transmission gratings.

Paper Details

Date Published: 23 July 1993
PDF: 2 pages
Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 198371 (23 July 1993); doi: 10.1117/12.2308672
Show Author Affiliations
Jiro Yamakita, Okayama Prefectural Univ. (Japan)


Published in SPIE Proceedings Vol. 1983:
16th Congress of the International Commission for Optics: Optics as a Key to High Technology
Gyorgy Akos; Tivadar Lippenyi; Gabor Lupkovics; Andras Podmaniczky, Editor(s)

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