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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 8 — Apr. 13, 2009
  • pp: 5933–5943

Optimization and tunability of deep subwavelength resonators for metamaterial applications: complete enhanced transmission through a subwavelength aperture

Kamil B. Alici, Filiberto Bilotti, Lucio Vegni, and Ekmel Ozbay  »View Author Affiliations


Optics Express, Vol. 17, Issue 8, pp. 5933-5943 (2009)
http://dx.doi.org/10.1364/OE.17.005933


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Abstract

In the present work, we studied particle candidates for metamaterial applications, especially in terms of their electrical size and resonance strength. The analyzed particles can be easily produced via planar fabrication techniques. The electrical size of multi-split ring resonators, spiral resonators, and multi-spiral resonators are reported as a function of the particle side length and substrate permittivity. The study is continued by demonstrating the scalability of the particles to higher frequencies and the proposition of the optimized particle for antenna, absorber, and superlens applications: a multi-spiral resonator with ?/30 electrical size operating at 0.810 GHz. We explain a method for tuning the resonance frequency of the multi-split structures. Finally, we demonstrate that by inserting deep subwavelength resonators into periodically arranged subwavelength apertures, complete transmission enhancement can be obtained at the magnetic resonance frequency.

© 2009 Optical Society of America

OCIS Codes
(260.5740) Physical optics : Resonance
(260.2065) Physical optics : Effective medium theory
(160.3918) Materials : Metamaterials

ToC Category:
Metamaterials

History
Original Manuscript: January 5, 2009
Revised Manuscript: February 27, 2009
Manuscript Accepted: March 27, 2009
Published: March 30, 2009

Citation
Kamil B. Alici, Filiberto Bilotti, Lucio Vegni, and Ekmel Ozbay, "Optimization and tunability of deep subwavelength resonators for metamaterial applications: complete enhanced transmission through a subwavelength aperture," Opt. Express 17, 5933-5943 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-8-5933


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