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Proceedings Paper

Surface-enhanced Raman fiber optic sensors for remote monitoring
Author(s): David L. Stokes; Jean Pierre Alarie; Tuan Vo-Dinh
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Paper Abstract

A new sensor design for remote surface-enhanced Raman scattering (SERS) measurements has been developed for environmental applications. The design features the modification of an optical fiber using layers of alumina microparticles and silver coatings for inducing the SERS effect at the sensing probe. A single fiber caries both the laser excitation and the SERS signal radiation, keeping optical parameters at the remote tip simple and consistent. The small tip size achievable with this configuration also demonstrates potential of this new design as a microsensor for in-situ measurement in microenvironments. Details of sensor tip fabrication and optical system design are described. SERS spectra of aqueous environmental samples acquired in-situ using the SERS sensor are also presented to illustrate the effectiveness of the SERS sensor.

Paper Details

Date Published: 9 October 1995
PDF: 7 pages
Proc. SPIE 2504, Environmental Monitoring and Hazardous Waste Site Remediation, (9 October 1995); doi: 10.1117/12.224146
Show Author Affiliations
David L. Stokes, Oak Ridge National Lab. (United States)
Jean Pierre Alarie, Oak Ridge National Lab. (United States)
Tuan Vo-Dinh, Oak Ridge National Lab. (United States)

Published in SPIE Proceedings Vol. 2504:
Environmental Monitoring and Hazardous Waste Site Remediation
Tuan Vo-Dinh, Editor(s)

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