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Proceedings Paper

Multiwave Analysis Of Reflection Gratings
Author(s): M. G. Moharam; T. K. Gaylord
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Paper Abstract

A new exact coupled-wave analysis is applied to the diffraction of electromagnetic waves by longitudinally-periodic media (reflection gratings). The analysis is formulated in a simple state equation matrix form easily implemented on a digital computer. The relative intensities of the two waves, the diffracted (reflected) and transmitted waves, are calculated for a wide range of parameters. These exact results are then compared to results obtained with the approximate 1) two-wave modal analysis, 2) multiwave coupled-wave analysis, and 3) two-wave coupled-wave analyses. Exact calculations for even-order Bragg incidence (which can not be handled with approximate coupled-wave analyses) are included.

Paper Details

Date Published: 10 February 1981
PDF: 6 pages
Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); doi: 10.1117/12.965644
Show Author Affiliations
M. G. Moharam, Georgia Institute of Technology (United States)
T. K. Gaylord, 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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