A comparison of enhancement factors for surface-enhanced Raman scattering using visible and near-infrared excitations

Journal Article (Journal Article)

We investigated enhancement factors for surface-enhanced Raman scattering from p-aminobenzoic acid (PABA) on different silver and gold substrates using visible (632.8 nm) and near-infrared (NIR) (1064 nm) excitations. The results indicated that the use of NIR excitation provided larger enhancements (about 10-100 times) than those obtained using the visible excitation. The enhancement factors for the PABA on the silver coated alumina, silver island, gold-coated alumina, and gold island are 2.7×106, 4.3×105, 3.0×104, and 6.0×103, respectively, with the NIR excitation, and are 4.6×104, 4.7×103, 1.2×103, and 6.0×102, respectively, with the visible excitation. © 2004 Elsevier B.V. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Ibrahim, A; Oldham, PB; Stokes, DL; Vo-Dinh, T; Loo, BH

Published Date

  • February 14, 2005

Published In

Volume / Issue

  • 735-736 / SPEC. ISS.

Start / End Page

  • 69 - 73

International Standard Serial Number (ISSN)

  • 0022-2860

Digital Object Identifier (DOI)

  • 10.1016/j.molstruc.2004.09.033

Citation Source

  • Scopus