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14 October 2005 High-efficiency transmission gratings for unpolarized illumination: an intelligible analysis of the diffraction process
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Abstract
For gaining a deeper understanding of the diffraction processes that take place in deep dielectric transmission gratings, a phenomenological explanation has been developed on the basis of a modal field, which propagates vertically through the grating region. The excitation of these modes by the incident wave, their propagation constants and how they couple to the diffraction orders determines the diffraction efficiency of the transmitted orders. The explicit modal analysis discloses the description of the highly efficient diffraction for polarized or unpolarized light by a very simple interference mechanism, which will be the subject of this paper.
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T. Clausnitzer, T. Kämpfe, E.-B. Kley, A. Tuennermann, U. Peschel, A. V. Tishchenko, and O. Parriaux "High-efficiency transmission gratings for unpolarized illumination: an intelligible analysis of the diffraction process", Proc. SPIE 5962, Optical Design and Engineering II, 596219 (14 October 2005); https://doi.org/10.1117/12.625170
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