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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 5, Iss. 8 — Jun. 8, 2010

Laser-treated substrate with nanoparticles for surface-enhanced Raman scattering

Cheng-Hsiang Lin, Lan Jiang, Jun Zhou, Hai Xiao, Shean-Jen Chen, and Hai-Lung Tsai  »View Author Affiliations

Optics Letters, Vol. 35, Issue 7, pp. 941-943 (2010)

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A rapid and simple approach to fabricate a large area of nanostructured substrate for surface-enhanced Raman scattering (SERS) is reported. Gold nanoparticles ranging from 10 to 40 nm in diameter uniformly distributed on a silicon substrate were obtained by annealing the gold film precoated on the silicon substrate with UV nanosenond (ns) laser pulses. The gold nanoparticles were formed by surface tension of the melted gold layer heated by ns laser pulses. The enhancement factor of the SERS substrate for Rhodamine 6G at 632.8 nm excitation was measured to be higher than 10 5 . The proposed technique provides the opportunity to equip a functional microchip with SERS capability of high sensitivity and chemical stability.

© 2010 Optical Society of America

OCIS Codes
(300.6450) Spectroscopy : Spectroscopy, Raman
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:

Original Manuscript: December 8, 2009
Revised Manuscript: January 25, 2010
Manuscript Accepted: February 3, 2010
Published: March 19, 2010

Virtual Issues
Vol. 5, Iss. 8 Virtual Journal for Biomedical Optics

Cheng-Hsiang Lin, Lan Jiang, Jun Zhou, Hai Xiao, Shean-Jen Chen, and Hai-Lung Tsai, "Laser-treated substrate with nanoparticles for surface-enhanced Raman scattering," Opt. Lett. 35, 941-943 (2010)

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