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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 2 — Jan. 15, 2010
  • pp: 244–246

Ultrathin layer sensing based on hybrid coupler with short-range surface plasmon polariton and dielectric waveguide

Ruiyuan Wan, Fang Liu, and Yidong Huang  »View Author Affiliations

Optics Letters, Vol. 35, Issue 2, pp. 244-246 (2010)

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A highly integrated sensor that is based on a hybrid coupler composed of short-range surface plasmon polariton (SRSPP) and dielectric waveguides was proposed for refractive index detecting of an ultrathin layer. The dependence of the coupling between the SRSPP and dielectric waveguide mode on the refractive index of the detecting layer was analyzed theoretically. For a detecting layer as thin as 1 15 wavelength, the resolution can be as high as 3.3 × 10 6 refractive index units with a sensing length of only tens of micrometers.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Optics at Surfaces

Original Manuscript: August 28, 2009
Revised Manuscript: November 16, 2009
Manuscript Accepted: November 23, 2009
Published: January 15, 2010

Ruiyuan Wan, Fang Liu, and Yidong Huang, "Ultrathin layer sensing based on hybrid coupler with short-range surface plasmon polariton and dielectric waveguide," Opt. Lett. 35, 244-246 (2010)

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