Nd3+:CaF2 crystal with controlled photoluminescence spectroscopic properties by codoping Y3+ ions

Nd3+:CaF2 crystal with controlled photoluminescence spectroscopic properties by codoping Y3+ ions
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通过共掺杂 Y3 离子控制光致发光光谱特性的 Nd3 :CaF2 晶体

DOI:
10.1016/j.optmat.2013.10.009
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发表时间:
2013-12
期刊:
影响因子:
3.9
通讯作者:
Radoslaw Lisiecki
Radoslaw Lisiecki
中科院分区:
材料科学3区
文献类型:
--
作者:
Jun Xu;Witold Ryba-Romanowski;Piotr Solarz;Radoslaw Lisiecki

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用TGT法获得了直径为3英寸的高光学质量Nd,Y共掺CaF_2晶体。分别在5 K、12 K和300 K下记录吸收和发射光谱。应用Judd-Ofelt理论得到了Nd ~(3+)~ 4F ~(3/2)→ ~ 4 I ~(11/2)跃迁的标准参数Ωt(t= 2,4,6)和实验寿命的拟合结果。Nd ~(3+)离子共掺杂获得了宽而平坦的1.06 μm发射光谱。Nd ~(3+)~ 4F ~(3/2)→ ~ 4 I ~(11/2)跃迁的最大发射带宽可达28 nm。结果表明,在Nd:CaF 2晶体中共掺杂Y3+离子,除了降低荧光浓度猝灭外,还能有效地调制Nd 3+离子的光谱性质。
High optical quality Nd,Y-codoped CaF2crystals with diameter 3-inch were obtained by TGT method. Absorption and emission spectra were recorded at 5 K, 12 K, and 300 K respectively. Judd–Ofelt theory was applied to obtain standard parameterΩt(t= 2, 4, 6) and the fitting result of experimental lifetime of Nd3+4F3/2→4I11/2transition. Broad and flat 1.06 μm emission spectra of Nd3+ions were obtained with Y3+-codoping. The largest emission bandwidth of Nd3+4F3/2→4I11/2transition is up to 28 nm. The results revealed that codoping Y3+ions in Nd:CaF2crystal can effectively modulate the spectra properties of Nd3+ions, in addition to the reduction of fluorescence concentration-quenching.
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