6533b871fe1ef96bd12d0e75
RESEARCH PRODUCT
A direct study of the vibrational bending effect in line mixing: The hot degenerate 1110 ← 0110 transition of CO2
A. DeroussiauxD. RobertJeanine BonamyBruno LavorelL. Bonamysubject
PhysicsRadiationDegenerate energy levelsRotational transitionParity (physics)Quantum numberAtomic and Molecular Physics and OpticsSpectral lineHot bandsymbols.namesakeAngular momentum couplingsymbolsAtomic physicsRaman spectroscopySpectroscopydescription
Abstract The study of the isotropiv Raman Q -branch of a hot band Π ← Π allows one to establish a direct connection between the vibration-rotation angular momentum coupling and the resulting spectra. Due to the l -doubling, the Q -branch is split into two subbranches characterized by either even or odd rotational quantum number j . The vibrational bending reduces the rotational transfer rates inside each of these subbranches by a factor of about two and induces an inter-subbranch coupling. The expected propensity rule towards conservation of the parity index for high rotational levels is well observed. Calculated spectra are in excellent agreement with CARS experiments for the v 1 + v 2 ← v 2 band of CO 2 .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-03-01 | Journal of Quantitative Spectroscopy and Radiative Transfer |