Abstract
Spectroscopic properties of Pr3+ doped KYb(WO4)2 single crystals were investigated. The crystal lattice parameters were determined. Energy levels of Pr3+ in KYb(WO4)2 were assigned. The absorption, emission, excitation, time-resolved emission and excitation spectra were measured at low (10 K) and at room temperature. Decay times of the praseodymium emissions are non-exponential and unusually short. Site selection spectroscopy evidences several different Pr3+ sites. The Judd-Ofelt intensity model was used to analyse the experimental data. The Ω λ parameters, branching ratio and electric dipole transition probabilities were determined.
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