Author:
Demesh Maxim P.,Gorbachenya Konstantin N.,Kisel Viktor E.,Volkova Elena A.,Maltsev Viktor V.,Koporulina Elizaveta V.,Kornienko Alexey A.,Dunina Elena B.,Kuleshov Nikolay V.
Abstract
A Pr3+ : YAl3(BO3)4 crystal with sizes of 20 × 10 × 10 mm was grown from high-temperature solution and its structural and spectroscopic properties were investigated. The distribution coefficient of praseodymium ranged from 0.6 to 0.8, that yield to the Pr3+ ion concentration of 1.1 ⋅1020 cm–3. Visible and infrared groundstate absorption (3H4) was measurement in dependence on the polarisation. The absorption spectra of the Pr3+ : YAl3(BO3)4 exhibit pronounced polarisation anisotropy. The modified Judd – Offelt theory was applied to evaluate the transitions intensities in absorption and emission, branching ratios and radiative lifetimes of the metastable levels 3P0 and 1D2.
Publisher
Belarusian State University