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Measurements of collisional broadening coefficients by infrared polarization spectroscopy

Alwahabi, Z. T. ; Zetterberg, Johan LU orcid ; Li, Zhongshan LU and Aldén, Marcus LU (2007) In Applied Spectroscopy 61(4). p.424-427
Abstract
We present measurements of collisional broadening coefficients, obtained at atmospheric pressure, by polarization spectroscopy. Using tunable single mode laser radiation at similar to 2 pro, 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(0)1 <- 00(0)0) line, have been determined to be 0.161 +/- 0.018 cm(-1) atm(-1) and 0.1823 +/- 0.0032 cm(-1) atm(-1), respectively.
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
collisional broadening, polarization spectroscopy, CO2, line shape
in
Applied Spectroscopy
volume
61
issue
4
pages
424 - 427
publisher
Society for Applied Spectroscopy
external identifiers
  • wos:000245537200011
  • scopus:34247182687
ISSN
1943-3530
DOI
10.1366/000370207780466163
language
English
LU publication?
yes
id
ff202761-24a0-40e4-bb1b-6c0a86336253 (old id 668018)
date added to LUP
2016-04-01 11:38:34
date last changed
2022-01-26 08:05:31
@article{ff202761-24a0-40e4-bb1b-6c0a86336253,
  abstract     = {{We present measurements of collisional broadening coefficients, obtained at atmospheric pressure, by polarization spectroscopy. Using tunable single mode laser radiation at similar to 2 pro, 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(0)1 &lt;- 00(0)0) line, have been determined to be 0.161 +/- 0.018 cm(-1) atm(-1) and 0.1823 +/- 0.0032 cm(-1) atm(-1), respectively.}},
  author       = {{Alwahabi, Z. T. and Zetterberg, Johan and Li, Zhongshan and Aldén, Marcus}},
  issn         = {{1943-3530}},
  keywords     = {{collisional broadening; polarization spectroscopy; CO2; line shape}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{424--427}},
  publisher    = {{Society for Applied Spectroscopy}},
  series       = {{Applied Spectroscopy}},
  title        = {{Measurements of collisional broadening coefficients by infrared polarization spectroscopy}},
  url          = {{http://dx.doi.org/10.1366/000370207780466163}},
  doi          = {{10.1366/000370207780466163}},
  volume       = {{61}},
  year         = {{2007}},
}