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9 May 2012 Fundamental studies of surface-enhanced Raman scattering (SERS) using aerosolized substrates
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The research presented in this paper improves potential for the application of surface-enhanced Raman scattering (SERS) in remote detection and analysis. Remote (stand-off) Raman sensing, with its ability to "fingerprint" analyte based on their unique vibrational spectra, offers great potential to address the challenging analytical problem of identifying unknown substances in low concentrations in the form of vaporous emissions or clouds. An inexpensive nebulizer/spray chamber was designed to study the mixing of aerosolized SERS (surface-enhanced Raman scattering) active nanostructures with a vapor phase analyte, the fluorophore Rhodamine 6G (R6G). Improved signal intensities (EF=200) are gained via SERS. Vapor phase mixing of the analyte and substrate is rapid (< 5 seconds).
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Obie Okponyia, Brent M. Williams, Kellie Patton, and Douglas A. Stuart "Fundamental studies of surface-enhanced Raman scattering (SERS) using aerosolized substrates", Proc. SPIE 8366, Advanced Environmental, Chemical, and Biological Sensing Technologies IX, 83660J (9 May 2012);

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