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Siyuan Pang

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Proceedings Article | 24 October 2017 Paper

Effects of Y3+ codoping on the spectral properties of Nd:CaF2 crystals

Siyuan Pang, Fengkai Ma, Xiaobo Qian, Dapeng Jiang, Jiayue Xu, Liangbi Su

Proceedings Volume 10457, 1045738 (2017) https://doi.org/10.1117/12.2285570

KEYWORDS: Crystals, Absorption spectroscopy, Emission spectroscopy

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Nd:Ca_1-xY_xF_2+x(x=0%,2%,5%,10%) crystals were grown by Temperature gradient technique. The emission spectrum and absorption spectrum were tested. The emission cross section, emission bandwidth and absorption cross section were calculated. The influence of codoping ions on the spectral performance was compared and analyzed. These crystals have better spectral parameters than Nd:CaF₂ crystals. By increasing the concentration of Y³⁺, spectral properties could be optimized. Among these crystals, the crystal with x=10% has the longest fluorescence lifetime (283.5 μs). The crystal with x=5% has the largest emission cross section(2.90× 10^-20 cm²) and the largest absorption cross section(2.18× 10^-20 cm²).

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