Abstract
Spectral studies of Pr3+ in aprotic POCl3 + SnCl4 laser liquid have been carried out in the visible and near i.r. regions. From the observed band positions, the Slater-Condon (F2, F4, and F6), configuration interaction (α, β), spin-orbit (ξ4f), nephelauxetic (β), bonding (δ), and Judd-Ofelt (T2, T4 and T6) intensity parameters are evaluated. From the splittings of the 3P2 and 1D2 bands, crystal field (A20, A40) parameters were evaluated assuming C3h symmetry for Pr3+ in POCl3:SnCl4 laser liquid. Theoritical estimates of spectral intensities calculated from Judd-Ofelt and electric (Sed)-magnetic (Smd) dipole line-strength methods are in good agreement with the observed values. Radiative lifetimes (TR) for the electronic excited states 3P1, 3P0 and 1D2 of Pr3+ in POCl3:SnCl4 laser liquid are predicted.
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