title: High resolution photoabsorption and photofragment fluorescence spectroscopy of water between 10.9 and 12 eV.
abstract: This work presents absorption and photofragment fluorescence spectra of water (H2O and D2O) simultaneously recorded at rotational resolution and at room temperature, by means of a synchrotron radiation source in the range 10.9-12 eV, covering the nd intense series from n=3 to 8. The Rydberg states observed are assigned in the light of the most advanced theoretical work available [M. S. Child, Philos. Trans. R. Soc. London, Ser. A 355, 1623 (1997)], and by reference to the stretching and bending mode progressions. Comparison between absorption and fluorescence spectra is shown to reveal a fast predissociation mechanism involving the linear 3pb2 1B2 state, and permits the identification of its (0,14,0) vibrational level observed in the absorption spectra.
authors.affiliation: LERMA, UMR 8112 du CNRS, Observatoire de Paris, 5 pl. J. Janssen, 92195 Meudon, France.
authors.forename: J-H
authors.initials: JH
authors.lastname: Fillion
authors.forename: J
authors.initials: J
authors.lastname: Ruiz
authors.forename: X-F
authors.initials: XF
authors.lastname: Yang
authors.forename: M
authors.initials: M
authors.lastname: Castillejo
authors.forename: F
authors.initials: F
authors.lastname: Rostas
authors.forename: J-L
authors.initials: JL
authors.lastname: Lemaire