Research output: Contribution to journal › Article › peer-review
Line-mixing effects in the 3 nu(3) band of CO2 perturbed by Ar. / Filippov, NN; Bouanich, JP; Hartmann, JM; Ozanne, L; Boulet, C; Tonkov, MV; Thibault, F; LeDoucen, R.
In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 55, No. 3, 03.1996, p. 307-320.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Line-mixing effects in the 3 nu(3) band of CO2 perturbed by Ar
AU - Filippov, NN
AU - Bouanich, JP
AU - Hartmann, JM
AU - Ozanne, L
AU - Boulet, C
AU - Tonkov, MV
AU - Thibault, F
AU - LeDoucen, R
PY - 1996/3
Y1 - 1996/3
N2 - Measurements of absorption coefficients in the 3v(3) band of CO2 at 1.44 mu m perturbed by Ar up to 146 bar have been analyzed by using two line-mixing theoretical calculations within the impact approximation. In the first approach, the relaxation operator is treated semi-classically with adiabatic corrections. In the second, the relaxation operator is modelled with the Energy Corrected Sudden (ECS) approximation associated with a power fitting law providing the basic rotational state-to-state rates. Although the line-coupling spectroscopic cross-sections of the two models are significantly different, they both lead to satisfactory agreement with bandshapes at moderate densities (
AB - Measurements of absorption coefficients in the 3v(3) band of CO2 at 1.44 mu m perturbed by Ar up to 146 bar have been analyzed by using two line-mixing theoretical calculations within the impact approximation. In the first approach, the relaxation operator is treated semi-classically with adiabatic corrections. In the second, the relaxation operator is modelled with the Energy Corrected Sudden (ECS) approximation associated with a power fitting law providing the basic rotational state-to-state rates. Although the line-coupling spectroscopic cross-sections of the two models are significantly different, they both lead to satisfactory agreement with bandshapes at moderate densities (
KW - TUNABLE-DIODE-LASER
KW - THEORETICAL-ANALYSIS
KW - CROSS-SECTIONS
KW - ABSORPTION
KW - RELAXATION
KW - DEPENDENCE
U2 - 10.1016/0022-4073(95)00170-0
DO - 10.1016/0022-4073(95)00170-0
M3 - статья
VL - 55
SP - 307
EP - 320
JO - Journal of Quantitative Spectroscopy and Radiative Transfer
JF - Journal of Quantitative Spectroscopy and Radiative Transfer
SN - 0022-4073
IS - 3
ER -
ID: 41411107