Growth and spectroscopic investigations of disordered Li3Ba2Yb3(MoO4)8 crystal

Abstract A large and transparent Li 3 Ba 2 Yb 3 (MoO 4 ) 8 crystal has been grown from a Li 2 MoO 4 flux by the top seeded solution growth (TSSG) method. The absorption and fluorescence spectra of the crystal have been described consistently with the anisotropic character of the monoclinic phase. The relative energies of the Yb 3+ stark levels have been determined based on the room temperature absorption and low temperature fluorescence spectra. The absorption cross sections at 977 nm are calculated to be 1.90, 2.71 and 1.09 × 10 −20 cm −2 and the emission cross sections at 1002 nm are calculated to be 1.18, 3.45 and 1.50 × 10 −20 cm −2 for E // X , E // Y and E // Z , respectively.