title: Optical observation of the 3s sigma gF3Pi u Rydberg state of N2.
abstract: Using ultrahigh-resolution 1 XUV+1 UV two-photon ionization laser spectroscopy, the F (3)Pi(u)<--X (1)Sigma(g) (+)(0,0) transition of N(2) has been optically observed for the first time, and the 3s sigma(g)F (3)Pi(u)(upsilon=0) Rydberg level fully characterized with rotational resolution. The experimental spectroscopic parameters and predissociation level widths suggest strong interactions between the F state and the 3p pi(u)G (3)Pi(u) Rydberg and C(') (3)Pi(u) valence states, analogous to those well known in the case of the isoconfigurational (1)Pi(u) states.
authors.affiliation: Laser Centre, Department of Physics and Astronomy, Vrije Universiteit, Amsterdam, The Netherlands.
authors.forename: J P
authors.initials: JP
authors.lastname: Sprengers
authors.forename: E
authors.initials: E
authors.lastname: Reinhold
authors.forename: W
authors.initials: W
authors.lastname: Ubachs
authors.forename: K G H
authors.initials: KG
authors.lastname: Baldwin
authors.forename: B R
authors.initials: BR
authors.lastname: Lewis