Non Franck-Condon effects in the photoionization of molecular nitrogen to the N+ A 2II state in the 19-34 eV photon energy region.
Författare
Summary, in English
Photoionization to the N2+ A 2Πu state is studied using photoelectron spectroscopy. Experimentally, vibrational branching ratios for the v′=0–3 levels obtained for the first time in the 20–34 eV region, show strong non Franck–Condon effects around 22 eV. Using ab initio many body perturbation theory, branching ratios for ionization to the A 2Πu state are calculated. This study indicates that the Franck–Condon breakdown in the photoionization of the N2 1πu electron is due to autoionization from Rydberg and valence states of N2.
Publiceringsår
2001
Språk
Engelska
Sidor
285-290
Publikation/Tidskrift/Serie
Chemical Physics Letters
Volym
338
Issue
4-6
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Communication Systems
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0009-2614