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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. 28, Iss. 7 — Jul. 1, 2011
  • pp: 1341–1348

Method-of-moments formulation for the analysis of plasmonic nano-optical antennas

José M. Taboada, Javier Rivero, Fernando Obelleiro, Marta G. Araújo, and Luis Landesa  »View Author Affiliations


JOSA A, Vol. 28, Issue 7, pp. 1341-1348 (2011)
http://dx.doi.org/10.1364/JOSAA.28.001341


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Abstract

We present a surface integral equation (SIE) to model the electromagnetic behavior of metallic objects at optical frequencies. The electric and magnetic current combined field integral equation considering both tangential and normal equations is applied. The SIE is solved by using a method-of-moments (MoM) formulation. The SIE-MoM approach is applied only on the material boundary surfaces and interfaces, avoiding the cumbersome volumetric discretization of the objects and the surrounding space required in differential-equation formulations. Some canonical examples have been analyzed, and the results have been compared with analytical reference solutions in order to prove the accuracy of the proposed method. Finally, two plasmonic Yagi–Uda nanoantennas have been analyzed, illustrating the applicability of the method to the solution of real plasmonic problems.

© 2011 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.2110) Physical optics : Electromagnetic optics
(260.3910) Physical optics : Metal optics
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

ToC Category:
Optics at Surfaces

History
Original Manuscript: March 18, 2011
Revised Manuscript: May 9, 2011
Manuscript Accepted: May 15, 2011
Published: June 3, 2011

Citation
José M. Taboada, Javier Rivero, Fernando Obelleiro, Marta G. Araújo, and Luis Landesa, "Method-of-moments formulation for the analysis of plasmonic nano-optical antennas," J. Opt. Soc. Am. A 28, 1341-1348 (2011)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-28-7-1341


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