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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 30, Iss. 5 — May. 1, 2013
  • pp: 1021–1029

Wavelet element method for lamellar gratings

Zhangyi Liu, Jiu Hui Wu, and Li Shen  »View Author Affiliations


JOSA A, Vol. 30, Issue 5, pp. 1021-1029 (2013)
http://dx.doi.org/10.1364/JOSAA.30.001021


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Abstract

A wavelet element method is developed for analyzing lamellar diffraction gratings or grating stacks. The eigenmodes of the grating layers are accurately calculated by this method, and then the diffraction efficiencies of the gratings are calculated by the S-matrix algorithm. The method proposed in this paper consists in mapping each homogeneous layer to a wavelet element, and then matching them according to the boundary conditions between the layers. By this method the boundary conditions are satisfied rigorously and the Gibbs phenomenon in the Fourier modal method (FMM) can be avoided. The method performs better than the standard FMM for gratings involving metals. It can also be applied to analyze other discontinuous structures.

© 2013 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(050.0050) Diffraction and gratings : Diffraction and gratings

ToC Category:
Diffraction and Gratings

History
Original Manuscript: January 23, 2013
Revised Manuscript: March 12, 2013
Manuscript Accepted: April 11, 2013
Published: April 29, 2013

Citation
Zhangyi Liu, Jiu Hui Wu, and Li Shen, "Wavelet element method for lamellar gratings," J. Opt. Soc. Am. A 30, 1021-1029 (2013)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-30-5-1021

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