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Investigation of Collision-Induced Absorption in the Fundamental Bands of O2 and N2 at Elevated Temperatures

Published

Author(s)

Y Baranov, Walter J. Lafferty, Gerald T. Fraser

Abstract

The NIST high-pressure multi-pass White absorption cell has been modified for use in high temperature studies. The temperature range of this cell is now -90o C to +90oC. Collision-induced absorption (CIA) of O2 and N2 has now been studied at temperatures up to 90o C. The CIA band intensity of O2 has been found to come to a minimum around 270 K and very surprisingly increases as the temperature is raised. In the case of N2 gas, the band intensity has a much smaller temperature dependence.
Citation
Journal of Molecular Spectroscopy
Volume
109

Keywords

fourier-transform-jet spectrum, high resolution IR spectrum, molecular beam, propene, torsional splitting

Citation

Baranov, Y. , Lafferty, W. and Fraser, G. (2007), Investigation of Collision-Induced Absorption in the Fundamental Bands of O<sub>2</sub> and N<sub>2</sub> at Elevated Temperatures, Journal of Molecular Spectroscopy (Accessed July 5, 2022)
Created October 14, 2007, Updated October 12, 2021