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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. 29, Iss. 10 — Oct. 1, 2012
  • pp: 2839–2847

Dual-band, double-negative, polarization-independent metamaterial for the visible spectrum

Muhammad I. Aslam and Durdu Ö. Güney  »View Author Affiliations


JOSA B, Vol. 29, Issue 10, pp. 2839-2847 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002839


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Abstract

We present what is to our knowledge the first dual-band negative index metamaterial that operates in the visible spectrum. The optimized four-functional-layer metamaterial structure exhibits the first double-negative (i.e., simultaneously negative permittivity and permeability) band in the red region of the visible spectrum with a figure of merit of 1.7 and the second double-negative band in the green region of the visible spectrum with a figure of merit of 3.2. The optical behavior of the proposed structure is independent of the polarization of the incident field. This low-loss metamaterial structure can be treated as a modified version of a fishnet metamaterial structure with an additional metal layer of different thickness in a single functional layer. The additional metal layer extends the diluted plasma frequency deep into the visible spectrum above the second-order magnetic resonance of the structure and hence provides a dual-band operation with simultaneously negative effective permittivity and permeability. Broadband metamaterials with multiple negative index bands may be possible with the same technique by employing higher-order magnetic resonances. The structure can be fabricated with standard microfabrication techniques that have been used to fabricate fishnet metamaterial structures.

© 2012 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(240.6680) Optics at surfaces : Surface plasmons
(160.3918) Materials : Metamaterials

ToC Category:
Materials

History
Original Manuscript: April 24, 2012
Revised Manuscript: August 21, 2012
Manuscript Accepted: August 25, 2012
Published: September 21, 2012

Citation
Muhammad I. Aslam and Durdu Ö. Güney, "Dual-band, double-negative, polarization-independent metamaterial for the visible spectrum," J. Opt. Soc. Am. B 29, 2839-2847 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2839

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Supplementary Material


» Media 1: MOV (1236 KB)     
» Media 2: MOV (1257 KB)     

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