The fluorescence spectrum resulting from laser excitation of the A 2Π1/2 ← X2Σ+ (0,0) band of ytterbium monofluoride, YbF, has been recorded and analyzed to determine the Franck-Condon factors. The measured values are compared with those predicted from Rydberg-Klein-Rees (RKR) potential energy curves. From the fluorescence decay curve the radiative lifetime of the A2Π 1/2 state is measured to be 28 ± 2 ns, and the corresponding transition dipole moment is 4.39 ± 0.16 D. The implications for laser cooling YbF are discussed.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Physics and Astronomy(all)