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Proceedings Paper

Planar Grating Diffraction: Multiwave Coupled-Wave Theory And Modal Theory
Author(s): M. G. Moharam; T. K. Gaylord; R. Magnusson
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Paper 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.

Paper Details

Date Published: 10 February 1981
PDF: 7 pages
Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); doi: 10.1117/12.965647
Show Author Affiliations
M. G. Moharam, Georgia Institute of Technology (United States)
T. K. Gaylord, Georgia Institute of Technology (United States)
R. Magnusson, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 0240:
Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I
C. H. Chi; E. G. Loewen; C. L. O'Bryan III, Editor(s)

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