Multiwave Analysis Of Reflection Gratings

M. G. Moharam; T. K. Gaylord

doi:10.1117/12.965644

10 February 1981 Multiwave Analysis Of Reflection Gratings

M. G. Moharam, T. K. Gaylord

Proceedings Volume 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I; (1981) https://doi.org/10.1117/12.965644
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

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.

Citation Download Citation

M. G. Moharam and T. K. Gaylord "Multiwave Analysis Of Reflection Gratings", Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); https://doi.org/10.1117/12.965644

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