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Proceedings Paper

Developing Raman spectroscopy for in-situ determinations
Author(s): Thomas J. Vickers; Charles K. Mann
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Paper Abstract

Raman spectroscopy produces highly characteristic responses from all molecular species. It uses ultraviolet, visible or near-infrared radiation and thus is well suited for use with relatively inexpensive low-loss fiber optics. Because it is a scattering measurement it is readily applied to samples in a variety of forms, including aqueous solutions, solids and slurries, and to samples in hostile environments. This report will discuss how concerns relating to sensitivity and reproducibility have been addressed by selection of appropriate instrumentation and data treatment strategies. Recent results with a fiber optic based system for a variety of samples with significant implications for in situ monitoring applications will be described. Problems relating to representative sampling of nonuniform materials have also been addressed, and results obtained with a novel Hadamard transform approach to obtain energy throughput and spatial averaging advantage will be described.

Paper Details

Date Published: 9 March 1993
PDF: 6 pages
Proc. SPIE 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers, (9 March 1993); doi: 10.1117/12.140274
Show Author Affiliations
Thomas J. Vickers, Florida State Univ. (United States)
Charles K. Mann, Florida State Univ. (United States)


Published in SPIE Proceedings Vol. 1716:
International Conference on Monitoring of Toxic Chemicals and Biomarkers

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