Sprengers, J. PReinhold, EUbachs, WLewis, B. RBaldwin, Kenneth2015-10-012015-10-0113/10/20050021-9606http://hdl.handle.net/1885/15744Using 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.The Molecular Atmospheric Physics MAP Program of the Netherlands Foundation for Fundamental Research on Matter FOM, and the Discovery Program of the Australian Research Council are gratefully acknowledged for their support.1 vol.application/pdfen-AUKeywords: Rotational resolution; Rydberg state; Ulrahigh resolution; Valence states; Dissociation; Spectroscopic analysis; Photoionization10.1063/1.20621892015-12-11