Doppler-free Stark spectra of the 401band of the Ã1A2—[Xtilde]1A1system of thioformaldehyde
- 1 July 1996
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 88 (4) , 997-1004
- https://doi.org/10.1080/00268979609484487
Abstract
Doppler-free Stark Spectra of the 40 1 band of the Ã1A2—[Xtilde]1A1 system of thioformaldehyde have been obtained using the technique of intermodulated fluorescence. Fully resolved m structures have been obtained for ten lines with linewidths of about 5 MHz. The a component of the dipole moment of the molecule in the excited state is 0·815 ± 0·020 Debye, but values from 0·77 D to 0·93 D have been derived from some of the Stark patterns depending on the degree of mixing of the excited-state levels with high rovibronic levels of the ground state.Keywords
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