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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 19, Iss. 7 — Mar. 28, 2011
  • pp: 6541–6548

Integrated plasmonic semi-circular launcher for dielectric-loaded surface plasmon-polariton waveguide

Xiaowei Li, Lingling Huang, Qiaofeng Tan, Benfeng Bai, and Guofan Jin  »View Author Affiliations


Optics Express, Vol. 19, Issue 7, pp. 6541-6548 (2011)
http://dx.doi.org/10.1364/OE.19.006541


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Abstract

A semi-circular plasmonic launcher integrated with dielectric-loaded surface plasmon-polaritons waveguide (DLSPPW) is proposed and analyzed theoretically, which can focus and efficiently couple the excited surface plasmon polaritons (SPPs) into the DLSPPW via the highly matched spatial field distribution with the waveguide mode in the focal plane. By tuning the incident angle or polarization of the illuminating beam, it is shown that the launcher may be conveniently used as a switch or a multiplexer that have potential applications in plasmonic circuitry. Furthermore, from an applicational point of view, it is analyzed how the coupling performance of the launcher can be further improved by employing multiple semi-circular slits.

© 2011 OSA

OCIS Codes
(230.0230) Optical devices : Optical devices
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: February 24, 2011
Manuscript Accepted: March 14, 2011
Published: March 22, 2011

Citation
Xiaowei Li, Lingling Huang, Qiaofeng Tan, Benfeng Bai, and Guofan Jin, "Integrated plasmonic semi-circular launcher for dielectric-loaded surface plasmon-polariton waveguide," Opt. Express 19, 6541-6548 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-7-6541


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