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Theoretical and Experimental Uncertainty in Temperature Measurement of Materials by Raman Spectroscopy

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Abstract:

Previous work has shown the potential of the Stokes/anti-Stokes intensity ratio from Raman spectroscopy for optically probing the temperature of materials. This paper uses the statistics of photon counting to set theoretical limits on the temperature accuracy of the technique, as well as developing an expression whereby the theoretical temperature uncertainty for any Raman band at a given temperature can be predicted. Comparison of the theory to experimental data is shown, and experimental limitations are discussed.

Keywords: Optical probes; Photon counting; Raman spectroscopy; Thermometry; Uncertainty

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702963905321

Affiliations: Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-1393

Publication date: August 1, 1996

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