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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13974–13981

Revealing the spatial distribution of the site enhancement for the surface enhanced Raman scattering on the regular nanoparticle arrays

Fan-Ching Chien, Wen Yen Huang, Jau-Ye Shiu, Chiung Wen Kuo, and Peilin Chen  »View Author Affiliations


Optics Express, Vol. 17, Issue 16, pp. 13974-13981 (2009)
http://dx.doi.org/10.1364/OE.17.013974


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Abstract

The spatial distribution of the site enhancement for the surface-enhanced Raman scattering (SERS) on the regular nanoparticle arrays has been investigated by the confocal Raman microscopy. It was found that the spatial distribution of the Raman signals on the well-ordered nanoparticle arrays was very inhomogeneous and concentrated on the defects of the nanoparticle arrays. The SERS signals were also observed to depend on the thickness of silver film and the defect density. It has been demonstrated that the number of SERS active sites can be increased ten folds by trimming the size of nanoparticles using oxygen plasma.

© 2009 OSA

OCIS Codes
(170.5660) Medical optics and biotechnology : Raman spectroscopy
(240.6680) Optics at surfaces : Surface plasmons
(180.5655) Microscopy : Raman microscopy
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Optics at Surfaces

History
Original Manuscript: June 2, 2009
Revised Manuscript: July 23, 2009
Manuscript Accepted: July 23, 2009
Published: August 3, 2009

Virtual Issues
Vol. 4, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Fan-Ching Chien, Wen Yen Huang, Jau-Ye Shiu, Chiung Wen Kuo, and Peilin Chen, "Revealing the spatial distribution of the site enhancement for the surface enhanced Raman scattering on the regular nanoparticle arrays," Opt. Express 17, 13974-13981 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-16-13974


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