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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 26 — Dec. 30, 2013
  • pp: 32432–32440

Surface plasmon modes in graphene wedge and groove waveguides

Penghong Liu, Xinzheng Zhang, Zenghong Ma, Wei Cai, Lei Wang, and Jingjun Xu  »View Author Affiliations


Optics Express, Vol. 21, Issue 26, pp. 32432-32440 (2013)
http://dx.doi.org/10.1364/OE.21.032432


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Abstract

Surface plasmon modes at terahertz-infrared waveband in subwavelength graphene wedge and groove waveguides are investigated, which can be categorized into perfect electric conductor and perfect magnetic conductor symmetric modes with different propagation characteristics. The electromagnetic near-fields are localized strongly in different regions for these two kinds of modes. Moreover, these modes can be interpreted by the folded graphene ribbon modes. The brim width of the waveguides and the Fermi energy of the graphene strongly influence the dispersion and propagation distances of the plasmon modes, which can be used for tuning the plasmon modes in graphene wedge and groove waveguides efficiently.

© 2013 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Plasmonics

History
Original Manuscript: October 25, 2013
Revised Manuscript: November 29, 2013
Manuscript Accepted: December 9, 2013
Published: December 20, 2013

Citation
Penghong Liu, Xinzheng Zhang, Zenghong Ma, Wei Cai, Lei Wang, and Jingjun Xu, "Surface plasmon modes in graphene wedge and groove waveguides," Opt. Express 21, 32432-32440 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-26-32432


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