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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 8 — Jul. 30, 2009

Nanostructures fabricated in chalcogenide glass for use as surface-enhanced Raman scattering substrates

Lei Su, C. J. Rowlands, and S. R. Elliott  »View Author Affiliations


Optics Letters, Vol. 34, Issue 11, pp. 1645-1647 (2009)
http://dx.doi.org/10.1364/OL.34.001645


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Abstract

We describe chalcogenide glass (ChG)-based nanostructures for use as substrates for surface-enhanced Raman scattering (SERS). Such substrates were fabricated by exploiting the photosensitivity of ChG. This allows convenient control of the shape, size, and spacing of the nanostructures. The substrates were used to investigate the sample-concentration and excitation-power dependences of SERS from Rhodamine 6G molecules. A sensitivity of 1 μ M was achieved at low excitation irradiance, and a semilinear concentration dependence was found for concentrations below 100 μ M , demonstrating the potential of these ChG-based SERS substrates for high-sensitivity quantitative analysis.

© 2009 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(300.6450) Spectroscopy : Spectroscopy, Raman
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Integrated Optics

History
Original Manuscript: February 13, 2009
Revised Manuscript: April 14, 2009
Manuscript Accepted: April 14, 2009
Published: May 22, 2009

Virtual Issues
Vol. 4, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Lei Su, C. J. Rowlands, and S. R. Elliott, "Nanostructures fabricated in chalcogenide glass for use as surface-enhanced Raman scattering substrates," Opt. Lett. 34, 1645-1647 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-34-11-1645

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