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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 3 — Mar. 1, 2010
  • pp: 488–497

Effective parameters and quasi-static resonances for periodic arrays of dielectric spheres

Ruey-Lin Chern and Xing-Xiang Liu  »View Author Affiliations


JOSA B, Vol. 27, Issue 3, pp. 488-497 (2010)
http://dx.doi.org/10.1364/JOSAB.27.000488


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Abstract

We investigate the effective parameters and quasi-static resonances for periodic arrays of dielectric spheres. The effective medium model based on the homogenization of normal modes for spherical particles is used to determine the effective permittivity ϵ eff and permeability μ eff in the quasi-static regime. Major features of ϵ eff and μ eff are characterized by the Lorentz-type anomalous dispersion around the frequencies pertaining to the leading-order electric and magnetic resonances, respectively. In particular, the anomalous dispersion is depicted by a resonance function associated with the spherical cavity. The underlying mechanism of quasi-static resonance is illustrated with the localized and dipole-like field patterns at the resonant frequencies. A comparison with the effective parameters for periodic arrays of dielectric circular cylinders is also discussed.

© 2010 Optical Society of America

OCIS Codes
(260.2065) Physical optics : Effective medium theory
(160.3918) Materials : Metamaterials
(160.5298) Materials : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: September 23, 2009
Revised Manuscript: December 20, 2009
Manuscript Accepted: January 19, 2010
Published: February 18, 2010

Citation
Ruey-Lin Chern and Xing-Xiang Liu, "Effective parameters and quasi-static resonances for periodic arrays of dielectric spheres," J. Opt. Soc. Am. B 27, 488-497 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-3-488

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