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Proceedings Paper

Raman spectroscopy: what do we need for field measurements?
Author(s): Thomas J. Vickers; Charles K. Mann
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Paper Abstract

Success in field measurements requires both appropriate instrumentation and appropriate data acquisition and treatment strategies. Recent advances in instrumentation have improved the utility of Raman spectroscopy for field measurements. This presentation focuses on data acquisition and treatment strategies. We have built into our measurement systems both hardware and software to provide automated wavenumber and intensity calibration and correction. Field measurements demand better wavenumber accuracy than is generally appreciated. In our approach, wavenumber calibration is based on atomic line spectra. Intensity axis calibration requires correction for pixel-to-pixel and wavelength-dependent sensitivity variations of the detector and wavelength- and time-dependent throughput variations of the probe and spectrograph optics. The data needed for these corrections are obtained by measurement with a calibrated white light source and with a standard sample. This presentation describes reference materials and how the calibration and corrections are affected.

Paper Details

Date Published: 9 October 1995
PDF: 6 pages
Proc. SPIE 2504, Environmental Monitoring and Hazardous Waste Site Remediation, (9 October 1995); doi: 10.1117/12.224114
Show Author Affiliations
Thomas J. Vickers, Florida State Univ. (United States)
Charles K. Mann, Florida State Univ. (United States)

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

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