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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 17 — Aug. 16, 2010
  • pp: 17719–17728

Transmission resonances in periodic U-shaped metallic nanostructures

Srinivasan Iyer, Sergei Popov, and Ari T. Friberg  »View Author Affiliations


Optics Express, Vol. 18, Issue 17, pp. 17719-17728 (2010)
http://dx.doi.org/10.1364/OE.18.017719


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Abstract

The spectral response of crescent-like metallic nanostructures, a sub-class of U-shaped split-ring resonators, on a glass substrate at normal incidence is studied numerically. Also, the interpretation of transmission resonances arising from periodic conventional standard split-ring resonators with rectangular edges (SSRR) at normal incidence is revisited. In particular, we focus on one specific transmission resonance which is present for nano-crescents (NC) but absent in the case of SSRRs used for metamaterials. It is proposed that for a U-shaped metallic structure of arbitrary geometry, coupling of plasmonic eigen modes at all the surfaces of the three-dimensional structure is essential to be considered. The manner in which the coupling takes place between plasmonic modes at all the surfaces of the three-dimensional structure is what completely characterizes transmission resonances, and it is unique for each given resonance.

© 2010 OSA

OCIS Codes
(160.4760) Materials : Optical properties
(240.6680) Optics at surfaces : Surface plasmons
(260.3910) Physical optics : Metal optics
(260.5740) Physical optics : Resonance

ToC Category:
Optics at Surfaces

History
Original Manuscript: June 24, 2010
Revised Manuscript: July 26, 2010
Manuscript Accepted: July 27, 2010
Published: August 2, 2010

Citation
Srinivasan Iyer, Sergei Popov, and Ari T. Friberg, "Transmission resonances in periodic U-shaped metallic nanostructures," Opt. Express 18, 17719-17728 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-17-17719


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