Rotationally inelastic rates and Raman Q-branch linewidths for N2+ N2
- 10 June 1991
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 73 (2) , 317-333
- https://doi.org/10.1080/00268979100101221
Abstract
The infinite order sudden (IOS) approximation is used to calculate rate constants for rotationally inelastic scattering of two N2 molecules. A new approximation, which is a modified version of the breathing sphere approximation, is introduced. Rate constants obtained using this approximation are compared with those of the IOS approximation. Both sets of rate constants are then summed up over all final rotational levels of the perturbed molecule in order to determine Raman Q-branch spectral linewidths. These theoretical linewidths are compared with experimental linewidths. Good agreement is obtained for higher temperatures.Keywords
This publication has 47 references indexed in Scilit:
- Study of a tube-wall catalytic methanation reactor using Coherent Anti-Stokes Raman SpectroscopyJournal of Catalysis, 1986
- CARS experiments in a full-scale (10 × 10 m) industrial coal furnaceApplied Optics, 1985
- Application of CARS to an Operating Chemical ReactorApplied Spectroscopy, 1984
- Application of the rotational diffusion model to the CARS spectra of high‐temperature, high‐pressure water vapourJournal of Raman Spectroscopy, 1984
- Neutral radical detection in silane glow-discharge plasma using coherent anti-stokes raman spectroscopyJournal of Non-Crystalline Solids, 1983
- Broadband single-pulse CARS spectra in a fired internal combustion engineApplied Optics, 1981
- CARS spectrometer for gases and flamesOptics & Laser Technology, 1980
- CARS measurements in an internal combustion engineApplied Optics, 1979
- Mechanism of Rotational RelaxationThe Journal of Chemical Physics, 1972
- Study of Optical Effects Due to an Induced Polarization Third Order in the Electric Field StrengthPhysical Review B, 1965