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Source-model technique analysis of electromagnetic scattering by surface grooves and slits |
JOSA A, Vol. 28, Issue 4, pp. 502-510 (2011)
http://dx.doi.org/10.1364/JOSAA.28.000502
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Abstract
A computational tool, based on the source-model technique (SMT), for analysis of electromagnetic wave scattering by surface grooves and slits is presented. The idea is to use a superposition of the solution of the unperturbed problem and local corrections in the groove/slit region (the grooves and slits are treated as perturbations). In this manner, the solution is obtained in a much faster way than solving the original problem. The proposed solution is applied to problems of grooves and slits in otherwise planar or periodic surfaces. Grooves and slits of various shapes, both smooth ones as well as ones with edges, empty or filled with dielectric material, are considered. The obtained results are verified against previously published data.
© 2011 Optical Society of America
OCIS Codes
(000.4430) General : Numerical approximation and analysis
(260.2110) Physical optics : Electromagnetic optics
(290.0290) Scattering : Scattering
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(050.6624) Diffraction and gratings : Subwavelength structures
ToC Category:
Diffraction and Gratings
History
Original Manuscript: September 9, 2010
Revised Manuscript: December 7, 2010
Manuscript Accepted: December 31, 2010
Published: March 4, 2011
Citation
Konstantin Trotskovsky and Yehuda Leviatan, "Source-model technique analysis of electromagnetic scattering by surface grooves and slits," J. Opt. Soc. Am. A 28, 502-510 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-4-502
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