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Proceedings Paper

Total light loss fiber optic spectroscopy: Progress towards a fiber optic raman organic sensor
Author(s): Kevin R. Kyle; Thomas M. Vess; S. Michael Angel
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Paper Abstract

A Raman probe has been developed utilizing a single optical fiber as both a light pipe and an active sensing element. By coating a small segment of the surface of an exposed glass fiber core with a thin polymer film, an inverted waveguide is formed where light transmitted down the fiber is stripped out of the core and into the polymer film. The polymer coating is used both as a waveguide and as a medium for concentrating small organic molecules to be interrogated by Raman spectroscopy. The ability of the fiber optic thin-film waveguide probe to detect organic vapors is demonstrated. The utility of the probe in the detection of nonaqueous phase liquids (NAPLs) is also described.

Paper Details

Date Published: 10 March 1994
PDF: 13 pages
Proc. SPIE 2068, Chemical, Biochemical, and Environmental Fiber Sensors V, (10 March 1994); doi: 10.1117/12.170654
Show Author Affiliations
Kevin R. Kyle, Lawrence Livermore National Lab. (United States)
Thomas M. Vess, Lawrence Livermore National Lab. (United States)
S. Michael Angel, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 2068:
Chemical, Biochemical, and Environmental Fiber Sensors V
Robert A. Lieberman, Editor(s)

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