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A series of Dy 3+ -doped and Dy 3+ /Tm 3+ -codoped chalcohalide glasses (72GeS 2 ·18Ga 2 S 3 ·10AgI) were prepared. The optical properties of the glasses, including Judd–Ofelt strength parameters, transition probabilities, excited state lifetimes, fluorescence branching ratios and emission cross-sections were calculated based on the absorption and emission...
Novel Yb 3+ -doped TeO 2 –ZnO–Nb 2 O 5 based tellurite glasses with high stimulated emission cross-section were prepared by melt-quenching method, and their spectroscopic and gain properties were investigated by means of absorption spectrum, fluorescence decay curve and fluorescence emission spectrum. The results show that the stimulated emission cross-section of the...
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