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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. 3 — Mar. 1, 2013
  • pp: 509–517

Fast and accurate analysis of large-scale composite structures with the parallel multilevel fast multipole algorithm

Özgür Ergül and Levent Gürel  »View Author Affiliations


JOSA A, Vol. 30, Issue 3, pp. 509-517 (2013)
http://dx.doi.org/10.1364/JOSAA.30.000509


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Abstract

Accurate electromagnetic modeling of complicated optical structures poses several challenges. Optical metamaterial and plasmonic structures are composed of multiple coexisting dielectric and/or conducting parts. Such composite structures may possess diverse values of conductivities and dielectric constants, including negative permittivity and permeability. Further challenges are the large sizes of the structures with respect to wavelength and the complexities of the geometries. In order to overcome these challenges and to achieve rigorous and efficient electromagnetic modeling of three-dimensional optical composite structures, we have developed a parallel implementation of the multilevel fast multipole algorithm (MLFMA). Precise formulation of composite structures is achieved with the so-called “electric and magnetic current combined-field integral equation.” Surface integral equations are carefully discretized with piecewise linear basis functions, and the ensuing dense matrix equations are solved iteratively with parallel MLFMA. The hierarchical strategy is used for the efficient parallelization of MLFMA on distributed-memory architectures. In this paper, fast and accurate solutions of large-scale canonical and complicated real-life problems, such as optical metamaterials, discretized with tens of millions of unknowns are presented in order to demonstrate the capabilities of the proposed electromagnetic solver.

© 2013 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(290.0290) Scattering : Scattering

ToC Category:
Scattering

History
Original Manuscript: October 22, 2012
Manuscript Accepted: January 29, 2013
Published: February 26, 2013

Citation
Özgür Ergül and Levent Gürel, "Fast and accurate analysis of large-scale composite structures with the parallel multilevel fast multipole algorithm," J. Opt. Soc. Am. A 30, 509-517 (2013)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-30-3-509


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