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1. Determination of Temperature by Stimulated Raman Scattering of Molecular Nitrogen, Oxygen, and Carbon-Dioxide

Author

Millot, G., Lavorel, B., Fanjoux, G., Wenger, C., Laboratoire de Spectronomie Moléculaire ( SMIL ), Université de Bourgogne ( UB ), Lavorel, Bruno, Laboratoire de spectronomie moléculaire et d'instrumentation laser [URA 777] [Dijon] (SMIL), and Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)

Subjects
SPECTROSCOPY, CO2 GAS, NU-1/2-NU-2 FERMI DYAD, SPECTRA, RELAXATION, ROTATIONAL, Q-BRANCH, BAND SHAPES, N-2, ENERGY-TRANSFER RATES, LAWS
Abstract

0721-7269; We have determined the temperature from SRS spectra of N2-N2, N2-CO2, O2-O2, and CO2-CO2 recorded in wide pressure and temperature ranges. The fitting procedure takes simultaneously into account the Dicke effect and motional narrowing. We have quantified the accuracy of the MEG and ECS-P models for rotational relaxation. The temperature extracted from each model is compared with thermocouple measurements. The influence of vibrational broadening and shifting is discussed in detail.

Published
1993

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