title: Photoionization study of multiphoton-excited SF6 in a molecular beam.
abstract: We have used a molecular-beam photoionization technique to probe the vibrational-energy distribution of SF(6) molecules excited by an intense CO(2) laser at energy fluences close to and below the dissociation threshold. We observe a significant bottleneck at low laser intensities. Even at laser fluences close to the dissociation threshold, most of the molecules remain in the discrete levels, and only a small fraction (approximately 10-25%) are excited into the quasi-continuum.
authors.affiliation: Materials and Molecular Research Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720, USA.
authors.forename: A S
authors.initials: AS
authors.lastname: Sudbø
authors.forename: P A
authors.initials: PA
authors.lastname: Schulz
authors.forename: D J
authors.initials: DJ
authors.lastname: Krajnovich
authors.forename: Y T
authors.initials: YT
authors.lastname: Lee
authors.forename: Y R
authors.initials: YR
authors.lastname: Shen