Trace molecular detection via surface-enhanced Raman scattering and surface-enhanced resonance Raman scattering at a distance of 15 meters.

Journal Article (Journal Article)

We report the first demonstration of surface-enhanced Raman spectroscopy (SERS) detection of para-mercapto benzoic acid (pMBA) and surface-enhanced resonance Raman spectroscopy (SERRS) detection of brilliant cresyl blue (BCB) and cresyl violet perchlorate (CVP) with continuous-wave excitation from a stand-off distance of 15 meters. We further report the first stand-off SERRS detection of BCB and CVP at that same distance in the presence of ambient fluorescent and incandescent/blackbody background light. These preliminary results suggest that it is possible to detect sub-nanomole amounts of material at reasonable distances with eye-safe laser powers using stand-off SERRS and serve as proof-of-concept highlighting the potential extension of stand-off Raman spectroscopy to include SERS and SERRS for remote, eye-safe chemical detection, analysis, and imaging in the presence of ambient background light.

Full Text

Duke Authors

Cited Authors

  • Scaffidi, JP; Gregas, MK; Lauly, B; Carter, JC; Angel, SM; Vo-Dinh, T

Published Date

  • May 2010

Published In

Volume / Issue

  • 64 / 5

Start / End Page

  • 485 - 492

PubMed ID

  • 20482966

Electronic International Standard Serial Number (EISSN)

  • 1943-3530

International Standard Serial Number (ISSN)

  • 0003-7028

Digital Object Identifier (DOI)

  • 10.1366/000370210791211763


  • eng