Radiative lifetime and quenching of the A 2∑+ and X2 2Π32 states of PbF

Spectroscopic constants of the known electronic states of lead monofluoride

“…Later, higher resolution emission studies conducted by Lumley and Barrow [4], modern laser induced fluorescence studies by Chen and Dagdigian [5] and Shestakov et al [6], and Fourier transform studies by Ziebarth et al [7] refined knowledge of this heavy, relativistic molecule. These studies were complemented by theoretical studies of Balasubramanian [8] and Das [9] which investigated the large ground-state spin-orbit coupling.…”

Pseudo-continuous resonance enhanced multiphoton ionisation: application to the determination of the hyperfine constants of208Pb19F

“…This ratio varies widely from experiment to experiment. For excitation of the A X 1 transition of PbF with our 10 Hz pulsed laser system, the 5 s lifetime of the A state [5] implies an effective ionisation duty cycle of 1 : 2 Â 10 4 . In addition to the obvious drawbacks of such a small duty cycle, experiments driven by short pulses of radiation occurring at low repetition rates may also suffer from large 1/f noise.…”