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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 9437–9446

Mode converter in metal-insulator-metal plasmonic waveguide designed by transformation optics

Xiang-Tian Kong, Zu-Bin Li, and Jian-Guo Tian  »View Author Affiliations


Optics Express, Vol. 21, Issue 8, pp. 9437-9446 (2013)
http://dx.doi.org/10.1364/OE.21.009437


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Abstract

A metal-insulator-metal (MIM) waveguide can support two plasmonic modes. Efficient conversion between the two modes can be achieved by reshaping of both phase and power density distributions of the guided mode. The converters are designed with the assistance of transformation optics. We propose two practical configurations for mode conversion, which only consist of homogeneous materials yielded from linear coordinate transformations. The functionalities of the converters are demonstrated by full wave simulations. Without consideration of transmission loss, conversion efficiency of as high as 95% can be realized.

© 2013 OSA

OCIS Codes
(230.7390) Optical devices : Waveguides, planar
(240.6680) Optics at surfaces : Surface plasmons
(260.2110) Physical optics : Electromagnetic optics

ToC Category:
Optical Devices

History
Original Manuscript: February 4, 2013
Revised Manuscript: April 2, 2013
Manuscript Accepted: April 5, 2013
Published: April 9, 2013

Citation
Xiang-Tian Kong, Zu-Bin Li, and Jian-Guo Tian, "Mode converter in metal-insulator-metal plasmonic waveguide designed by transformation optics," Opt. Express 21, 9437-9446 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-8-9437


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