Abstract
A Nd3+ doped LaF3 crystal has been grown by Czochralski method, and the X-ray diffraction results show that Nd3+ have not changed the essential LaF3 structure. Room temperature absorption spectrum, fluorescence spectrum and fluorescence decay curve of the crystal are measured and analyzed in detail. By applying the Judd–Ofelt approach, the emission probabilities, branching ratios and radiative lifetime for the transitions from 4F3/2 manifold are investigated. Furthermore, the emission cross-section for the transition of 4F3/2 → 4I11/2 as well as the fluorescence lifetime of 4F3/2 manifold are obtained and analyzed. The radiative lifetime, fluorescence lifetime and quantum efficiency are 567 μs, 522 μs and 92%, respectively. The results are compared with other Nd3+ doped hosts, indicating that Nd:LaF3 is favorable laser media.
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