He-, Ne- and Kr-broadening coefficients of lines in the fundamental ν3 band of 12C32S2 at low temperature

Pardaillan Kongolo Tshikala, Claude Populaire, Ghislain Blanquet, Muriel Lepère

Research output: Contribution to journalArticle

Abstract

Using a tunable diode-laser spectrometer coupled with a low temperature cell, He-, Ne- and Kr-broadening coefficients of 8 lines in the fundamental ν3 band of CS2 have been measured at five low temperatures: 173 K, 198 K, 223 K, 248 K and 273 K. These lines with J values ranging from 2 to 78 are located in the spectral range 1514-1544 cm -1, four lines in the P branch and four in the R branch. The collisional half-widths have been obtained by adjusting each experimental profile with a Voigt, Rautian and Galatry lineshape model. For each line, the collisional broadening coefficients obtained at low temperature and those previously at room temperature have been used to deduce the n-parameter of the temperature dependence. We have also determined the average value of the temperature dependence of collisional broadening coefficients for lines in the ν3 band of CS2 diluted in helium, neon and krypton.

Original languageEnglish
Pages (from-to)24-30
Number of pages7
JournalJournal of molecular spectroscopy
Volume298
DOIs
Publication statusPublished - Apr 2014

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coefficients
laser spectrometers
K lines
temperature dependence
krypton
neon
Temperature
adjusting
helium
diodes
Krypton
Neon
Helium
room temperature
profiles
cells
Semiconductor lasers
Spectrometers

Keywords

  • Carbon disulfide
  • Collisional broadening
  • Diode-laser
  • Rare gases

Cite this

@article{a8269e548b5a4d79a5d2798c1d24f519,
title = "He-, Ne- and Kr-broadening coefficients of lines in the fundamental ν3 band of 12C32S2 at low temperature",
abstract = "Using a tunable diode-laser spectrometer coupled with a low temperature cell, He-, Ne- and Kr-broadening coefficients of 8 lines in the fundamental ν3 band of CS2 have been measured at five low temperatures: 173 K, 198 K, 223 K, 248 K and 273 K. These lines with J values ranging from 2 to 78 are located in the spectral range 1514-1544 cm -1, four lines in the P branch and four in the R branch. The collisional half-widths have been obtained by adjusting each experimental profile with a Voigt, Rautian and Galatry lineshape model. For each line, the collisional broadening coefficients obtained at low temperature and those previously at room temperature have been used to deduce the n-parameter of the temperature dependence. We have also determined the average value of the temperature dependence of collisional broadening coefficients for lines in the ν3 band of CS2 diluted in helium, neon and krypton.",
keywords = "Carbon disulfide, Collisional broadening, Diode-laser, Rare gases",
author = "{Kongolo Tshikala}, Pardaillan and Claude Populaire and Ghislain Blanquet and Muriel Lep{\`e}re",
year = "2014",
month = "4",
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language = "English",
volume = "298",
pages = "24--30",
journal = "Journal of molecular spectroscopy",
issn = "0022-2852",
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}

He-, Ne- and Kr-broadening coefficients of lines in the fundamental ν3 band of 12C32S2 at low temperature. / Kongolo Tshikala, Pardaillan; Populaire, Claude; Blanquet, Ghislain; Lepère, Muriel.

In: Journal of molecular spectroscopy, Vol. 298, 04.2014, p. 24-30.

Research output: Contribution to journalArticle

TY - JOUR

T1 - He-, Ne- and Kr-broadening coefficients of lines in the fundamental ν3 band of 12C32S2 at low temperature

AU - Kongolo Tshikala, Pardaillan

AU - Populaire, Claude

AU - Blanquet, Ghislain

AU - Lepère, Muriel

PY - 2014/4

Y1 - 2014/4

N2 - Using a tunable diode-laser spectrometer coupled with a low temperature cell, He-, Ne- and Kr-broadening coefficients of 8 lines in the fundamental ν3 band of CS2 have been measured at five low temperatures: 173 K, 198 K, 223 K, 248 K and 273 K. These lines with J values ranging from 2 to 78 are located in the spectral range 1514-1544 cm -1, four lines in the P branch and four in the R branch. The collisional half-widths have been obtained by adjusting each experimental profile with a Voigt, Rautian and Galatry lineshape model. For each line, the collisional broadening coefficients obtained at low temperature and those previously at room temperature have been used to deduce the n-parameter of the temperature dependence. We have also determined the average value of the temperature dependence of collisional broadening coefficients for lines in the ν3 band of CS2 diluted in helium, neon and krypton.

AB - Using a tunable diode-laser spectrometer coupled with a low temperature cell, He-, Ne- and Kr-broadening coefficients of 8 lines in the fundamental ν3 band of CS2 have been measured at five low temperatures: 173 K, 198 K, 223 K, 248 K and 273 K. These lines with J values ranging from 2 to 78 are located in the spectral range 1514-1544 cm -1, four lines in the P branch and four in the R branch. The collisional half-widths have been obtained by adjusting each experimental profile with a Voigt, Rautian and Galatry lineshape model. For each line, the collisional broadening coefficients obtained at low temperature and those previously at room temperature have been used to deduce the n-parameter of the temperature dependence. We have also determined the average value of the temperature dependence of collisional broadening coefficients for lines in the ν3 band of CS2 diluted in helium, neon and krypton.

KW - Carbon disulfide

KW - Collisional broadening

KW - Diode-laser

KW - Rare gases

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