Spectroscopic properties of ErAl3(BO3)4 single crystal

Single crystal of ErAl3(BO3) (4) was grown and its structure was studied. Polarized absorption spectra of ErAl3(BO3)(4) single crystal were measured in the spectral range 1670-330 nm (6000-30000 cm (1)). The Judd-Ofelt spectroscopic parameters have been determined: Omega(2) = 4.87 x 10 (20) cm(2), Omega(4) = 2.49 x 10 (20) cm(2), Omega(6) = 2.72 x 10 (20) cm(2). These parameters have been used to calculate the radiative transition probabilities, the multiplet luminescence branching ratios and the fluorescence life times of the manifolds. The luminescence spectra due to transitions H-2(11/2) -> I-4(15/2) (526 nm), S-4(3/2) -> I-4(15/2) (548 nm), F-4(9/2) -> I-4(15/2) (662 nm), H-2(11/2) -> I-4(13/2) + I-4(9/2) -> I-4(15/2) (800 nm) and S-4(3/2) -> I-4(13/2) (855 nm) were recorded in a, r and p polarizations. The most intensive luminescence belonged to S-4(3/2) -> I-4(15/2) transition (548 nm). (C) 2013 Elsevier B.V. All rights reserved.