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Opt Express. 2008 Aug 18;16(17):13016-23.

Local electric field enhancement and polarization effects in a surface-enhanced Raman scattering fiber sensor with chessboard nanostructure.

Author information

1
College of Optical Sciences, The University of Arizona, Tucson, Arizona 85721, USA. schen@optics.arizona.edu

Abstract

A surface-enhanced Raman scattering fiber sensor with chessboard nanostructure on a cleaved fiber facet is studied by finite-difference time-domain method. Surface plasmons at the metal coated nanostructured fiber facet can be effectively excited and strong local electric field enhancement is obtained. Studies on the influence of light polarization demonstrate a large polarization dependence of the field enhancement factor while the polarization effects on the plasmon resonance wavelength are relatively small.

PMID:
18711540
[Indexed for MEDLINE]

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