6533b827fe1ef96bd1285a49
RESEARCH PRODUCT
High resolution CARS spectrum and analysis of the v1bandQ-branch of carbon dioxide
J.p. BoquillonH.w. SchrötterY. Ouazzanysubject
Dye laserChemistryBiophysicsAnalytical chemistryCondensed Matter PhysicsLaser linewidthsymbols.namesakeQuality (physics)TorrsymbolsCoherent anti-Stokes Raman spectroscopyFermi resonancePhysical and Theoretical ChemistryAtomic physicsRaman spectroscopyMolecular BiologyLine (formation)description
High resolution coherent anti-Stokes Raman spectroscopy (CARS) has been applied to the study of the Q-branch of the fundamental vibrational v 1 band of CO2 in the Fermi resonance region near 1285·5 cm-1. Thanks to the use of high spectral quality (linewidth = 6 MHz) injection-locked flashlamp-pumped dye lasers, it was possible to resolve this band for the first time. The spectrum was recorded at a pressure of 5 kPa (37·5 Torr) at room temperature. We measured the line positions and collisional widths for the transitions with J values from 8 to 38. Our experimental line positions are in excellent agreement with those derived from molecular constants given on the literature. The observed linewidths agree for most of the lines within 5 per cent with the values calculated from a recently developed model.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1988-04-10 | Molecular Physics |