Structural and spectroscopic characterization of Yb³⁺ doped Lu₂O₃ transparent ceramics

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• 作者：Haojia Zhang ; Qiuhong Yang ; ^{yangqiuhongcn@yahoo.com.cn} ; Shenzhou Lu ; Zhifa Shi
• 关键词：Yb ; Lu2O3 transparent ceramics ; Broad emission band ; Gain cross-section
• 刊名：Optical Materials
• 出版年：2012
• 期刊代码：81_09253467
• 类别：ch
• 出版时间：April, 2012
• 卷：34
• 期：6
• 页码：969-972
• 文件大小：576 K

摘要

Yb³⁺ doped Lu₂O₃ transparent ceramics were fabricated by the solid-state reaction method and sintered in H₂ atmosphere. Structural and spectroscopic properties of Yb:Lu₂O₃ ceramics were studied. The Yb:Lu₂O₃ ceramic structure, and the lattice parameter are refined with the Rietveld method. Yb:Lu₂O₃ has broad absorption and emission bands with a long fluorescence lifetime (1.31 ms). The energy level diagram is calculated based on the absorption and emission spectra, Yb³⁺ in Lu₂O₃ ceramics exhibits a big splitting energy of the ²F_7/2 ground state (1023 cm^鈭?). Furthermore, the gain cross-section (蟽_g) is estimated with different 尾 values.