Rare earths in lead-free oxyfluoride germanate glasses
作者： Wojciech A. Pisarski , Joanna Pisarska , Dominik Dorosz , Jan Dorosz
DOI: 10.1016/J.SAA.2014.07.029
关键词:
摘要: Abstract Spectroscopic properties of rare earths in lead-free oxyfluoride germanate glasses were studied. The absorption and luminescence spectra Eu3+, Pr3+ Er3+ ions examined as a function BaF2 concentration several spectroscopic parameters for determined. ratio integrated intensity the 5D0 → 7F2 transition to that 5D0 → 7F1 Eu3+ decrease significantly with increasing content. (Er3+) emission (Pr3+) ‘hypersensitive transitions’ are shifted direction shorter wavelengths content glass composition. Emission their decays corresponding main 4I13/2 → 4I15/2 laser also analyzed. Quite long-lived NIR is observed samples low concentration.
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