Abstract
The optical properties of KLa(MoO4)2 crystals doped with Nd3+ are investigated at temperatures in the range 10–300 K. The spontaneous transition probabilities, the branching ratios, and the radiative lifetime are calculated in the framework of the Judd–Ofelt theory and compared with the experimental results for the 4F3/2 emitting level. Moreover, the observed splittings of the multiplets are reliably reproduced by a crystal-field calculation. The structural disorder of this crystal causes a substantial broadening of the emission bands. This fact and the high emission cross-section values obtained for the emission from the 4F3/2 multiplet indicate KLM:Nd as a possible active medium for tunable laser operation.
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