Identification of two new electronic transitions of TaF using intracavity laser spectroscopy

Abstract

Several bands in two new electronic transitions of TaF have been recorded in high resolution using intracavity laser absorption spectroscopy (ILS). The (1,0), (0,0), and (0,1) bands of the [16.0]0+ – X3Σ−(0+) transition and the (2,1), (1,0), (0,0), (0,1), and (1,2) bands of the [16.3]1 – X3Σ−(0+) transition were observed. TaF was produced in the plasma discharge of a tantalum-lined copper hollow cathode with Ar [1 torr] as a sputter gas and trace of SF6 as a fluoride source. Trace H2 [1%] also was used as it was found to increase the intensity of the observed transitions. The transitions were analyzed using PGOPHER, and the obtained molecular parameters are presented and compared with a previous work.