Sub-Doppler laser spectroscopy of SO2 in a supersonic beam
- 1 October 1984
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 81 (7) , 2919-2924
- https://doi.org/10.1063/1.448039
Abstract
Sub-Doppler excitation spectra of the E band of SO2 around 304 nm have been measured with a spectral resolution down to 10 MHz, by crossing the frequency doubled output beam of a single mode cw dye laser perpendicularly with a supersonic molecular SO2 beam. Although the spectral line density is so large that the mean line separation becomes smaller than the Doppler width, there is no true background continuum. The analysis of the spectra proves that several upper vibrational levels are excited within the E band. A model explaining the observed phenomena is discussed.Keywords
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