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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 11 — May. 23, 2011
  • pp: 10907–10912

Fano-type spectral asymmetry and its control for plasmonic metal-insulator-metal stub structures

Xianji Piao, Sunkyu Yu, Sukmo Koo, Kwanghee Lee, and Namkyoo Park  »View Author Affiliations

Optics Express, Vol. 19, Issue 11, pp. 10907-10912 (2011)

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We use coupled mode theory (CMT) to analyze a metal-insulator-metal (MIM) plasmonic stub structure, to reveal the existence of asymmetry in its transmittance spectra. Including the effect of the near field contribution for the stub structure, the observed asymmetry is interpreted as Fano-type interference between the quasi-continuum T-junction-resonator local-modes and discrete stub eigenmodes. Based on the asymmetry factor derived from the CMT analysis, methods to control transmittance asymmetry are also demonstrated.

© 2011 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(250.5300) Optoelectronics : Photonic integrated circuits
(260.2110) Physical optics : Electromagnetic optics
(140.3325) Lasers and laser optics : Laser coupling

ToC Category:
Optics at Surfaces

Original Manuscript: March 30, 2011
Revised Manuscript: May 6, 2011
Manuscript Accepted: May 13, 2011
Published: May 20, 2011

Xianji Piao, Sunkyu Yu, Sukmo Koo, Kwanghee Lee, and Namkyoo Park, "Fano-type spectral asymmetry and its control for plasmonic metal-insulator-metal stub structures," Opt. Express 19, 10907-10912 (2011)

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