C. Pedrini et al., SPECTROSCOPIC STUDIES OF THE F[--]D ULTRAVIOLET TRANSITIONS OF PR3-EARTH FLUORIDES( IN ALKALINE), Chemical physics letters, 220(6), 1994, pp. 433-436
Absorption and UV fluorescence spectra of Pr3+ weakly doped alkaline e
arth fluoride single crystals have been recorded and interpreted in te
rms of f-->d transitions. Short fluorescence lifetimes have been measu
red. The emission spectra and the decay profiles of Pr-doped BaF2 have
been studied as a function of photon excitation energy. This latter s
ystem exhibits cross-luminescence and excitonic fluorescence in additi
on to d-f luminescence of Pr3+.