10 February 1981 Planar Grating Diffraction: Multiwave Coupled-Wave Theory And Modal Theory
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Abstract
General slanted planar gratings bounded by two different media, have been analyzed using a new rigorous coupled-wave approach. The analysis is unifying and is formulated in a simple matrix form easily implemented on a digital computer. Sample calculations for transmission, slanted, and reflection gratings are presented. This new approach is compared to the widely-used modal approach and to the approximate coupled-wave approaches. It is shown that, for the present coupled-wave approach, solutions are easily calculated for general slanted gratings whereas solutions using the modal approach are available only for unslanted (pure trans-mission) gratings.
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M. G. Moharam, M. G. Moharam, T. K. Gaylord, T. K. Gaylord, R. Magnusson, R. Magnusson, } "Planar Grating Diffraction: Multiwave Coupled-Wave Theory And Modal Theory", Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); doi: 10.1117/12.965647; https://doi.org/10.1117/12.965647
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