Molecular Multiphoton Ionization,
Abstract
Resonant multiphoton ionization (MPI) of nitrogen has been studied using photoelectron spectroscopy in the short-pulse regime. Both Rydberg and valence states are identified as intermediate resonances in the photoionization process, although the valence states are seen only at low intensity. It is shown that the vibrational structure of the Rydberg states acting as intermediate resonances cancels out in the photoelectron spectrum, leading to sharp atomic-like spectra, even at high intensities. Finally, the ionization of the 3 sigma sub g 1 pi sub u and 2 sigma sub u electrons are clearly distinguished.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 1992
- Accession Number
- ADP007077
Entities
People
- G. N. Gibson
- R. R. Freeman
- T. J. Mcllrath