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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 20 — Sep. 28, 2009
  • pp: 17471–17482

Plasmonic multi-mode interference couplers

Yu-Ju Tsai, Aloyse Degiron, Nan M. Jokerst, and David R. Smith  »View Author Affiliations

Optics Express, Vol. 17, Issue 20, pp. 17471-17482 (2009)

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Plasmonic multi-mode interference (MMI) couplers have been investigated both numerically and experimentally at the telecommunication wavelength of 1.55 μm. In this study, the couplers are implemented using thin Au stripes that support long-range surface plasmons. We first detail the operation principle of these devices with numerical simulations and show that useful effects can be obtained despite the high material losses inherent to metallic structures. A series of MMI couplers is subsequently fabricated and experimentally characterized, showing a quantitative agreement with our numerical predictions. We conclude by discussing some of the possible applications for these structures.

© 2009 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optics at Surfaces

Original Manuscript: July 10, 2009
Revised Manuscript: August 21, 2009
Manuscript Accepted: August 24, 2009
Published: September 15, 2009

Yu-Ju Tsai, Aloyse Degiron, Nan M. Jokerst, and David R. Smith, "Plasmonic multi-mode interference couplers," Opt. Express 17, 17471-17482 (2009)

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