On a Fast Integral Equation Method for Diffraction Gratings

On a Fast Integral Equation Method for Diffraction Gratings

Year:    2006

Communications in Computational Physics, Vol. 1 (2006), Iss. 6 : pp. 984–1009

Abstract

The integral equation method for the simulation of the diffraction by optical gratings is an efficient numerical tool if profile gratings determined by simple cross-section curves are considered. This method in its recent version is capable to tackle profile curves with corners, gratings with thin coated layers, and diffraction scenarios with unfavorably large ratio period over wavelength. We discuss special implementational issues including the efficient evaluation of the quasi-periodic Green kernels, the quadrature algorithm, and the iterative solution of the arising systems of linear equations. Finally, as an example we present the simulation of echelle gratings which demonstrates the efficiency of our approach.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2006-CiCP-7991

Communications in Computational Physics, Vol. 1 (2006), Iss. 6 : pp. 984–1009

Published online:    2006-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    26

Keywords:    Diffraction gratings