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Perturbation method for the Rigorous Coupled Wave Analysis of grating diffraction |
Optics Express, Vol. 18, Issue 25, pp. 26274-26284 (2010)
http://dx.doi.org/10.1364/OE.18.026274
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Abstract
The perturbation method is combined with the Rigorous Coupled Wave Analysis (RCWA) to enhance its computational speed. In the original RCWA, a grating is approximated by a stack of lamellar gratings and the number of eigenvalue systems to be solved is equal to the number of subgratings. The perturbation method allows to derive the eigensolutions in many layers from the computed eigensolutions of a reference layer provided that the optical and geometrical parameters of these layers differ only slightly. A trapezoidal grating is considered to evaluate the performance of the method.
© 2010 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(050.1755) Diffraction and gratings : Computational electromagnetic methods
ToC Category:
Diffraction and Gratings
History
Original Manuscript: September 14, 2010
Revised Manuscript: October 26, 2010
Manuscript Accepted: October 26, 2010
Published: December 1, 2010
Citation
Kofi Edee, Jean-Pierre Plumey, Gérard Granet, and Jérome Hazart, "Perturbation method for the Rigorous Coupled Wave Analysis of grating diffraction," Opt. Express 18, 26274-26284 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-25-26274
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