LINE-MIXING EFFECTS IN $\Sigma-\Pi$ Q-BRANCHES OF $CO_{2}$. TEMPERATURE, PRESSURE, AND PERTURBER DEPENDENCIES

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1996

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Ohio State University

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Line-mixing effects in two infrared CO2 Q-branches of Σ←Π vibrational symmetry near 15 μm mixed with He, Ar, N2 and O2 have been studied over a wild range of temperature (200$\rightarrow300K)andpressure(0.5\rightarrow$10 bars). A full analyzis of the perturbers influence on line-mixing within the Q-branch has been made using the recent formabism developed by L. Bonamy4 and al. accounting for the rotational angular momentum relaxation mechanism. The correct agreements obtained in spectra computations show the validity of the model.

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1 Laboratoire de Physique Mol'{e}culaire et Applications, United propre du CNRS (UPR 136) ascoci'{e}e, Universit'{e}s Paris-Sud et P. & M. Curie, Universit'{e} Paris-Sud (bxit, 350), 91405 Orssy Cedex, France. 2 Department de Physique Atomique et Mol'{e}cularies, U.R.A. CNRS 1203, Universit'{e} de Rennes 1, Campus Beaulion, 35042. Rennes Cedex France. 3 Laboratoire de Physique Mol'{e}cularire, U.R.A. CNRS 772, Universit'{e} de Francho-Comt'{e}, La Bonlole 25030 Besancom Cedex, France. 4 L. Bonumy and F. Emond, ``Rotational-angular-momentum relaxation mechanisms in the energy-corrected-sudden scaling theory'', Phys. Rev. A 51, 1235-1240 (1995).


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http://hdl.handle.net/1811/13756

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1990-1999