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Type: Journal article
Title: Measurements of collisional broadening coefficients by infrared polarization spectroscopy
Author: Alwahabi, Z.
Zetterberg, J.
Li, Z.
Alden, M.
Citation: Applied Spectroscopy, 2007; 61(4):424-427
Publisher: Soc Applied Spectroscopy
Issue Date: 2007
ISSN: 0003-7028
Abstract: We present measurements of collisional broadening coefficients, obtained at atmospheric pressure, by polarization spectroscopy. Using tunable single mode laser radiation at approximately 2 microm, high-resolution infrared polarization spectra were recorded for CO2-Ar and CO2-He binary mixtures. The recorded polarization spectra were fitted with a Lorentzian cubed function form to obtain the broadening coefficients. The full-width at half-maxima (FWHM) collisional broadening rates of CO2 by Ar and He, for the R14 (12 degrees1<--00 degrees0) line, have been determined to be 0.161+/-0.018 cm-1 atm-1 and 0.1823+/-0.0032 cm-1 atm-1, respectively.
Keywords: Carbon Dioxide; Argon; Helium; Microscopy, Polarization; Spectrophotometry, Infrared; Equipment Design; Equipment Failure Analysis
RMID: 0020070535
DOI: 10.1366/000370207780466163
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Appears in Collections:Chemical Engineering publications

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