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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 23 — Nov. 8, 2010
  • pp: 23756–23762

Dielectric-loaded surface plasmon polariton waveguide with a holey ridge for propagation-loss reduction and subwavelength mode confinement

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


Optics Express, Vol. 18, Issue 23, pp. 23756-23762 (2010)
http://dx.doi.org/10.1364/OE.18.023756


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Abstract

A novel dielectric-loaded surface plasmon polariton (DLSPP) waveguide with an air nanohole within a high-index dielectric ridge is proposed and analyzed. It is demonstrated by simulations that the introduced air nanohole could strongly modify the modal behavior, and it could alleviate the transmission loss caused by the high-index ridge with rather small sacrifice in the mode area. Under certain geometric parameter ranges, a shallow and wide air nanohole at the metal surface could result in strong local field enhancement while improves the figure of merit (FOM). The proposed structure could enable the realization of the DLSPP waveguide with a high-index ridge to achieve subwavelength mode confinement with relatively low transmission loss.

© 2010 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: August 24, 2010
Revised Manuscript: September 24, 2010
Manuscript Accepted: September 28, 2010
Published: October 27, 2010

Citation
Yusheng Bian, Zheng Zheng, Ya Liu, Jinsong Zhu, and Tao Zhou, "Dielectric-loaded surface plasmon polariton waveguide with a holey ridge for propagation-loss reduction and subwavelength mode confinement," Opt. Express 18, 23756-23762 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-23-23756


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