The effect of elastic and reorientation collisions on vibration-rotation lineshapes: A semi-empirical approach

Andrew E. DePristo; Herschel Rabitz

doi:10.1016/0022-4073(79)90107-9

The effect of elastic and reorientation collisions on vibration-rotation lineshapes: A semi-empirical approach

Andrew E. DePristo, Herschel Rabitz

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Abstract

Collisional broadening of rotation-vibration spectral lines is investigated. The contributions from inelastic and elastic-reorientation collisions are separated using a semi-empirical inversion procedure. The basis for this deconvolution is the derivation of a relationship between the enelastic, Wⁱⁿ, and elastic-reorientation, W^el-r, contributions to the width, which depends upon a single unknown parameter. The experimental linewidth, W^exp = W^el-r + Wⁱⁿ, suffices to determine this parameter uniquely, which is then used to calculate the individual components W^el-r and Wⁱⁿ. Results of applications to the CO-, HF-, and HCI- rare gas systems are presented.

Original language	English (US)
Pages (from-to)	65-79
Number of pages	15
Journal	Journal of Quantitative Spectroscopy and Radiative Transfer
Volume	22
Issue number	1
DOIs	https://doi.org/10.1016/0022-4073(79)90107-9
State	Published - Jul 1979

All Science Journal Classification (ASJC) codes

Radiation
Atomic and Molecular Physics, and Optics
Spectroscopy

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10.1016/0022-4073(79)90107-9

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title = "The effect of elastic and reorientation collisions on vibration-rotation lineshapes: A semi-empirical approach",

abstract = "Collisional broadening of rotation-vibration spectral lines is investigated. The contributions from inelastic and elastic-reorientation collisions are separated using a semi-empirical inversion procedure. The basis for this deconvolution is the derivation of a relationship between the enelastic, Win, and elastic-reorientation, Wel-r, contributions to the width, which depends upon a single unknown parameter. The experimental linewidth, Wexp = Wel-r + Win, suffices to determine this parameter uniquely, which is then used to calculate the individual components Wel-r and Win. Results of applications to the CO-, HF-, and HCI- rare gas systems are presented.",

author = "DePristo, {Andrew E.} and Herschel Rabitz",

year = "1979",

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T2 - A semi-empirical approach

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PY - 1979/7

Y1 - 1979/7

N2 - Collisional broadening of rotation-vibration spectral lines is investigated. The contributions from inelastic and elastic-reorientation collisions are separated using a semi-empirical inversion procedure. The basis for this deconvolution is the derivation of a relationship between the enelastic, Win, and elastic-reorientation, Wel-r, contributions to the width, which depends upon a single unknown parameter. The experimental linewidth, Wexp = Wel-r + Win, suffices to determine this parameter uniquely, which is then used to calculate the individual components Wel-r and Win. Results of applications to the CO-, HF-, and HCI- rare gas systems are presented.

AB - Collisional broadening of rotation-vibration spectral lines is investigated. The contributions from inelastic and elastic-reorientation collisions are separated using a semi-empirical inversion procedure. The basis for this deconvolution is the derivation of a relationship between the enelastic, Win, and elastic-reorientation, Wel-r, contributions to the width, which depends upon a single unknown parameter. The experimental linewidth, Wexp = Wel-r + Win, suffices to determine this parameter uniquely, which is then used to calculate the individual components Wel-r and Win. Results of applications to the CO-, HF-, and HCI- rare gas systems are presented.

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The effect of elastic and reorientation collisions on vibration-rotation lineshapes: A semi-empirical approach

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