Search for: [Abstrakt = "Oxyfluoride lead borate glasses singly doped with Nd3\+ and Er3\+ ions have been studied before and after thermal treatment. The orthorhombic PbF2 crystallites are formed during thermal treatment, which was evidenced by X\-ray diffraction analysis. Near\-infrared luminescence spectra at 1.06 μm and 1.53 μm have been registered for samples before and after annealing, which correspond to the main 4F3\/2–4I11\/2 and 4I13\/2–4I15\/2 laser transitions of Nd3\+ and Er3\+ ions, respectively. Luminescence decays from 4F3\/2 state of Nd3\+ and 4I13\/2 state of Er3\+ have been analyzed in detail. Contrary to Nd\-doped samples, the luminescence lines obtained for Er\-doped transparent oxyfluoride glass\-ceramics are more intense and narrowed, whereas the luminescence decays from 4I13\/2 state of Er3\+ are slightly longer in comparison to precursor glasses."]

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