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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 21 — Oct. 8, 2012
  • pp: 22976–22986

Internal homogenization: Effective permittivity of a coated sphere

Uday K. Chettiar and Nader Engheta  »View Author Affiliations


Optics Express, Vol. 20, Issue 21, pp. 22976-22986 (2012)
http://dx.doi.org/10.1364/OE.20.022976


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Abstract

The concept of internal homogenization is introduced as a complementary approach to the conventional homogenization schemes, which could be termed as external homogenization. The theory for the internal homogenization of the permittivity of subwavelength coated spheres is presented. The effective permittivity derived from the internal homogenization of coreshells is discussed for plasmonic and dielectric constituent materials. The effective model provided by the homogenization is a useful design tool in constructing coated particles with desired resonant properties.

© 2012 OSA

OCIS Codes
(260.3910) Physical optics : Metal optics
(160.3918) Materials : Metamaterials

ToC Category:
Metamaterials

History
Original Manuscript: August 14, 2012
Revised Manuscript: September 13, 2012
Manuscript Accepted: September 14, 2012
Published: September 24, 2012

Citation
Uday K. Chettiar and Nader Engheta, "Internal homogenization: Effective permittivity of a coated sphere," Opt. Express 20, 22976-22986 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-21-22976


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