Fig. 3

Spectra of the P(4.5) line of the [18.6]3.5 – X(1)4.5 0-0 band of UF in an electric field of (a) 0 kV/cm (field free), (b) 3.43 kV/cm, laser polarized parallel to field, and (c) 3.43 kV/cm, laser polarized perpendicular to field. The labels on the spectra correspond to the transitions shown in the energy diagram.