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Measurements of collisional broadening coefficients by infrared polarization spectroscopy

In English

Författare

Summary, in English

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.

Publiceringsår

2007

Språk

Engelska

Sidor

424-427

Publikation/Tidskrift/Serie

Applied Spectroscopy

Volym

61

Issue

4

Dokumenttyp

Artikel i tidskrift

Förlag

Society for Applied Spectroscopy

Ämne

  • Atom and Molecular Physics and Optics

Nyckelord

  • collisional broadening
  • polarization spectroscopy
  • CO2
  • line shape

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1943-3530