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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. 28, Iss. 10 — Oct. 1, 2011
  • pp: 2518–2523

Wavelength filtering and demultiplexing structure based on aperture-coupled plasmonic slot cavities

Feifei Hu and Zhiping Zhou  »View Author Affiliations


JOSA B, Vol. 28, Issue 10, pp. 2518-2523 (2011)
http://dx.doi.org/10.1364/JOSAB.28.002518


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Abstract

We propose a submicron plasmonic wavelength filtering/demultiplexing structure based on aperture-coupled slot cavities, which can overcome the limitation by the field skin depth of 25 nm in a conventional evanescent- coupling approach, and thus lead to an easy-to-fabricate device structure. By introducing the stub-induced interference arm in the drop or bus waveguide, the power ratio between the different resonance modes can be effectively adjusted by changing the stub length. Also, the transmission peak can be about two times higher than that without stub structure in the bus waveguide. Our results open a way to construct nanoscale wave length filters and demultiplexers for high-density nanoplasmonic integration circuits.

© 2011 Optical Society of America

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(130.3120) Integrated optics : Integrated optics devices
(240.6680) Optics at surfaces : Surface plasmons
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

History
Original Manuscript: July 7, 2011
Revised Manuscript: August 25, 2011
Manuscript Accepted: August 29, 2011
Published: September 29, 2011

Citation
Feifei Hu and Zhiping Zhou, "Wavelength filtering and demultiplexing structure based on aperture-coupled plasmonic slot cavities," J. Opt. Soc. Am. B 28, 2518-2523 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-10-2518


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