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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 4 — Feb. 20, 2006
  • pp: 1557–1567

Negative effective permeability and left-handed materials at optical frequencies

A. Alù, A. Salandrino, and N. Engheta  »View Author Affiliations


Optics Express, Vol. 14, Issue 4, pp. 1557-1567 (2006)
http://dx.doi.org/10.1364/OE.14.001557


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Abstract

We present here the design of nano-inclusions made of properly arranged collections of plasmonic metallic nano-particles that may exhibit a resonant magnetic dipole collective response in the visible domain. When such inclusions are embedded in a host medium, they may provide metamaterials with negative effective permeability at optical frequencies. We also show how the same inclusions may provide resonant electric dipole response and, when combining the two effects at the same frequencies, left-handed materials with both negative effective permittivity and permeability may be synthesized in the optical domain with potential applications for imaging and nano-optics applications.

© 2006 Optical Society of America

OCIS Codes
(160.3900) Materials : Metals
(160.4670) Materials : Optical materials

ToC Category:
Metamaterials

History
Original Manuscript: January 3, 2006
Revised Manuscript: February 14, 2006
Manuscript Accepted: February 15, 2006
Published: February 20, 2006

Citation
A. Alù, A. Salandrino, and N. Engheta, "Negative effective permeability and left-handed materials at optical frequencies," Opt. Express 14, 1557-1567 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-4-1557


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  21. The Drude model employed here accurately describes the frequency dispersion of silver over all the visible frequencies [20]. The minimal difference between this model and realistic experimental data, possibly due to the finite size of the spheres, resonant interband transitions in the material, etc., would not significantly affect the present discussion and approach, since the inherent resonant phenomena here described may only be slightly shifted in frequency or modified in strength, still preserving the validity of the concepts pointed out here.
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