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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 15 — Jul. 20, 2009
  • pp: 12678–12684

Aperture-coupled MIM plasmonic ring resonators with sub-diffraction modal volumes

Z. Han, V. Van, W. N. Herman, and P.-T. Ho  »View Author Affiliations


Optics Express, Vol. 17, Issue 15, pp. 12678-12684 (2009)
http://dx.doi.org/10.1364/OE.17.012678


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Abstract

We propose and investigate ultracompact aperture-coupled plasmonic ring resonators with submicron bending radii based on strongly-confined metal-insulator-metal plasmonic waveguides. Enhanced coupling can be obtained via diffraction by small apertures having typical widths between 50–100nm in the metallic sidewall between the ring and bus waveguides. Both analytical model and rigorous FDTD simulations show that 500nm-radius ring resonators can be obtained with low insertion loss, wide free spectral range and sub-diffraction cavity volume of less than 0.1(λ0/neff)3.

© 2009 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optics at Surfaces

History
Original Manuscript: May 13, 2009
Revised Manuscript: July 4, 2009
Manuscript Accepted: July 6, 2009
Published: July 10, 2009

Citation
Z. Han, V. Van, W. N. Herman, and P.-T. Ho, "Aperture-coupled MIM plasmonic ring resonators with sub-diffraction modal volumes," Opt. Express 17, 12678-12684 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-15-12678


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