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Nonlocal homogenization of metamaterials by dual interpolation of fields |
JOSA B, Vol. 28, Issue 12, pp. 2956-2965 (2011)
http://dx.doi.org/10.1364/JOSAB.28.002956
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Abstract
The proposed homogenization theory—a major extension of the recently published methodology [ J. Opt. Soc. Am. B 28, 577 (2011)]—yields an extended second-order material tensor consolidating the usual 36 local material parameters and additional ones that rigorously quantify nonlocality. The local part of the tensor relates the mean values of pairs of coarse-grained fields, while the nonlocal part relates the mean values to variations of the fields. The theory is based on a direct analysis of fields in a lattice cell rather than on an indirect retrieval of material parameters from transmission/reflection data. There are no heuristic assumptions and no artificial averaging rules. Nontrivial magnetic behavior, if present, is a logical consequence of the theory. The approximations involved and the respective errors are clearly identified. Illustrative examples of resonant structures with high-permittivity inclusions are given.
© 2011 Optical Society of America
OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(050.2065) Diffraction and gratings : Effective medium theory
(160.3918) Materials : Metamaterials
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(050.5298) Diffraction and gratings : Photonic crystals
ToC Category:
Diffraction and Gratings
History
Original Manuscript: June 21, 2011
Revised Manuscript: August 28, 2011
Manuscript Accepted: September 16, 2011
Published: November 21, 2011
Citation
Igor Tsukerman, "Nonlocal homogenization of metamaterials by dual interpolation of fields," J. Opt. Soc. Am. B 28, 2956-2965 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-12-2956
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