Spectroscopy of Nd3+ and Yb3+ codoped fluoroindogallate glasses
Spectroscopy of Nd3+ and Yb3+ codoped fluoroindogallate glasses
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DOI：
10.1063/1.1397289
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发表时间：
2001-09
影响因子：
3.2
通讯作者：
D. F. Sousa;F. Batalioto;M. Bell;S. Oliveira;L. Nunes
中科院分区：
文献类型：
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作者：
D. F. Sousa;F. Batalioto;M. Bell;S. Oliveira;L. Nunes
研究了Nd-Nd和Nd-Yb能量转移过程在氟吲哚镓酸铅玻璃中的作用，玻璃的摩尔组成如下：30PbF2-20GaF3-15InF3-15ZnF2-（20-X）CaF2-XNdF3（X=0.1、0.5、1、2、4和5），30 PbF 2 - 20 GaF 3 - 15 InF 3 - 15 ZnF 2-（20-X）CaF 2-XYbF 3（其中X=0.1、0.5、1、2、3和5）和30 PbF 2 - 20 GaF 3 - 15 InF 3 - 15 ZnF 2-（19-X）CaF 2-XYbF 3 - 1 NdF 3（其中X=0.1、0.5、1、2、3和5.5）。Dexter，Yokota-Tanimoto和Holstein形式化被用来处理实验数据。获得了以下能量传递的微观参数：CDD（Nd-Nd）=2.5×10−40，CDA（Nd-Nd）=2.5×10−40，CDA（Nd-Yb）= 3×10−40 cm 6/s。结果还表明，Nd离子间的能量迁移依赖于温度的三次幂（T3），直至饱和值约为80 K。这种行为归因于部位间能量迁移。Yb掺杂样品在969 nm处的Yb 3+发射没有表现出非辐射损失。
The Nd–Nd and Nd–Yb energy transfer processes are studied in lead fluoroindogallate glasses with the following molar composition: 30PbF2–20GaF3–15InF3–15ZnF2–(20–X)CaF2–XNdF3 (with X=0.1, 0.5, 1, 2, 4, and 5), 30PbF2–20GaF3–15InF3–15ZnF2–(20–X)CaF2–XYbF3 (with X=0.1, 0.5, 1, 2, 3, and 5), and 30PbF2–20GaF3–15InF3–15ZnF2–(19–X)CaF2–XYbF3–1NdF3 (with X=0.1, 0.5, 1, 2, 3, and 5.5). The Dexter, Yokota–Tanimoto, and Holstein formalisms were used to treat the experimental data. The following microparameters of energy transfer were obtained: CDD(Nd–Nd)≈7×10−40, CDA(Nd–Nd)=2.5×10−40, and CDA(Nd–Yb)≈3×10−40 cm6/s. It was also shown that the energy migration between Nd ions depends on the third power of temperature (T3) up to a saturation value of about 80 K. This behavior was attributed to the site to site energy migration. The Yb doped samples presented no nonradiative losses for the Yb3+ emission at 969 nm.