Scientific Results

Collisional broadening and shift of lines in the 2 nu(1)+2 nu(2)+nu(3) band of CO2

Year: 1999

Authors: De Rosa M., Corsi C., Gabrysch M., D’Amato F.

Autors Affiliation: European Laboratory for Nonlinear Spectroscopy (LENS) and Dipartimento di Fisica, Università di Firenze, Largo E. Fermi 2, 50125, Firenze, Italy; Dipartimento di Neuroscienze, Università di Firenze, Viale Pieraccini 6, 50139 Firenze, Italy and ENEA, INN-FIS-SPET, Via E. Fermi 45, 00044 Frascati (RM), Italy

Abstract: Using a distributed feedback diode laser, pressure induced self-broadening and shift have been measured for several transitions in the 2 nu(1) + 2 nu(2) + nu(3) band of CO2, centered at 1.573 mu m. Foreign broadening and shift, with N-2 and O-2 as perturbing gas, have been measured for the most intense lines. The results for broadening have been compared with the data given by HITRAN molecular database and some discrepancies have been found, specially for air broadening derived from N-2 and O-2 broadening. (C) 1998 Elsevier Science Ltd. All rights reserved.

Journal/Review: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER

Volume: 61 (1)      Pages from: 97  to: 104

More Information: This activity was supported by European Union, through the contracts ENV4-CT95-0033 and ERB FMGECT950017. One of the authors (M.D.R.) wishes to thank INFM for √ěnancial support. Many thanks are due to Prof. M. Inguscio and Dr. G. Baldacchini for useful discussions and Mr. E. Clemente for valuable help.
KeyWords: Collisional broadening; collisional shift; CO2
DOI: 10.1016/S0022-4073(97)00207-0

Citations: 29
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