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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Spectroscopic properties of the 1.8 μm emission of Tm ~(3+)/Yb~(3+) codoped TeO_2-ZnO-Bi_2O _3 glasses with efficient energy transfer
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Spectroscopic properties of the 1.8 μm emission of Tm ~(3+)/Yb~(3+) codoped TeO_2-ZnO-Bi_2O _3 glasses with efficient energy transfer

机译：Tm〜（3 +）/ Yb〜（3+）共掺杂的TeO_2-ZnO-Bi_2O_3玻璃的1.8μm发射光谱特性与能量转移

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摘要

Tm~(3+)-doped and Tm~(3+)/Yb~(3+)-codoped TeO _2-ZnO-Bi_2O_3 (TZB) glasses are prepared by melt-quenching method. The Judd-Ofelt intensity parameters (Ωt t = 2, 4, 6), radiative transition rate, and radiative lifetime of Tm 3+ are calculated based on the absorption spectra. The 1.8 μm emission of the samples is investigated under 980 nm laser excitation. The absorption, emission cross-sections, and gain coefficient of Tm ~(3+:3)F_4 → ~3H_6 are calculated. The energy transfer processes of Yb~(3+)-Yb~(3+) and Yb~(3+)-Tm~(3+) are analyzed, the results show that the Yb ~(3+) ions can transfer their energy to Tm~(3+) ions with large energy transfer coefficient, and a maximum efficiency of 79%.
机译：采用熔融淬火法制备了掺有Tm〜（3+）和掺有Tm〜（3 +）/ Yb〜（3+）的TeO _2-ZnO-Bi_2O_3（TZB）玻璃。根据吸收光谱计算出Jud-Ofelt强度参数（Ωtt = 2、4、6），辐射跃迁速率和Tm 3+的辐射寿命。在980 nm激光激发下研究了样品的1.8μm发射。计算出Tm〜（3+：3）F_4→〜3H_6的吸收截面，发射截面和增益系数。分析了Yb〜（3 +）-Yb〜（3+）和Yb〜（3 +）-Tm〜（3+）的能量转移过程，结果表明Yb〜（3+）离子可以转移Tm〜（3+）离子具有很高的能量转移系数，最大效率为79％。

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