Spectral properties of Pr 3+ ions in Bi 2 (MoO 4 ) 3 crystal

A Bi2(MoO4)3 single crystal doped with Pr3+ ions has been grown by the Czochralski technique. The polarized absorption and fluorescence spectra as well as the fluorescence decay curve of Pr3+ ions in the crystal were measured at room temperature. The spectroscopic parameters, including the Judd–Ofelt intensity parameters Ωt (t=2, 4, and 6), spontaneous emission probabilities, fluorescence branching ratios, radiative lifetimes, stimulated emission cross sections, and fluorescence quantum efficiencies, were calculated. The spectral properties related to laser performance of this crystal were analyzed. The 1 D 2 multiplet of the crystal may be a good upper level for a solid-state laser.