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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 23 — Nov. 7, 2011
  • pp: 22417–22422

Hybrid wedge plasmon polariton waveguide with good fabrication-error-tolerance for ultra-deep-subwavelength mode confinement

Yusheng Bian, Zheng Zheng, Ya Liu, Jiansheng Liu, Jinsong Zhu, and Tao Zhou  »View Author Affiliations


Optics Express, Vol. 19, Issue 23, pp. 22417-22422 (2011)
http://dx.doi.org/10.1364/OE.19.022417


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Abstract

A novel hybrid plasmonic waveguide consisting of a high-index dielectric nanowire placed above a triangular metal wedge substrate is proposed and analyzed theoretically. The strong coupling between the wedge plasmon polariton and the dielectric nanowire mode results in both the ultra-tight confinement and low propagation loss. Compared to the previous studied hybrid surface plasmon polariton structures without the metal wedge substrate, stronger field enhancement in the low-index gap region as well as improved figure of merit (FOM) could be realized simultaneously. Results of the modal properties considering certain fabrication imperfections show that the proposed structure is also quite tolerant to these errors.

© 2011 OSA

OCIS Codes
(130.2790) Integrated optics : Guided waves
(240.6680) Optics at surfaces : Surface plasmons
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Optics at Surfaces

History
Original Manuscript: April 22, 2011
Revised Manuscript: June 11, 2011
Manuscript Accepted: June 14, 2011
Published: October 24, 2011

Citation
Yusheng Bian, Zheng Zheng, Ya Liu, Jiansheng Liu, Jinsong Zhu, and Tao Zhou, "Hybrid wedge plasmon polariton waveguide with good fabrication-error-tolerance for ultra-deep-subwavelength mode confinement," Opt. Express 19, 22417-22422 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-23-22417


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