Microstructure-size dependence of the 1.520 μm Er3+ luminescence lifetime in Al2O3-ZrO2 eutectic melt growth composites
Microstructure-size dependence of the 1.520 μm Er3+ luminescence lifetime in Al2O3-ZrO2 eutectic melt growth composites
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DOI：
10.1063/1.1445469
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发表时间：
2002-01
影响因子：
4
通讯作者：
R. I. Merino;J. A. Pardo;J. Peña;V. Orera
中科院分区：
文献类型：
--
作者：
R. I. Merino;J. A. Pardo;J. Peña;V. Orera
通过改变激光漂浮区生长Er3+掺杂Al2O3-ZrO2共晶熔体生长复合材料的微观结构，Er3+ 4I13/2能级的辐射寿命提高了15%。铒只进入高折射率的ZrO2相，占样品体积的30%。在10 K和室温下，测定了4S3/2 （545 nm）和4I13/2 (1520 nm) Er3+在不同微观结构下的寿命。由于发光离子的光学环境的变化，1520 nm处可用的电磁模式发生了变化，从而导致最后一能级的寿命随间相间距的变化。
The radiative lifetime of the 4I13/2 level of Er3+ was modified up to 15% by changing the microstructure in laser-floating-zone-grown Er3+-doped Al2O3–ZrO2 eutectic melt growth composites. Erbium enters only the higher-refractive-index ZrO2 phase, which occupies 30% of the volume of the sample. The lifetimes of 4S3/2 (545 nm) and 4I13/2 (1520 nm) Er3+ levels were measured at 10 K and room temperature in different microstructures. The variation in the lifetime of this last level with interphase spacing is due to the change of the available electromagnetic modes at 1520 nm due to the change in the optical environment of the luminescent ion.