Abstract Up-conversion (UC) luminescence properties of Nd:Y2O3transparent ceramics are investigated. It is shown that, under a laser excitation of 808 nm, the samples exhibit significant UC emission. With an increase in the Nd3+ concentration, the intensity of green emission decreases, while the intensity of red emission first increases and then decreases. In particular, both green and red UC emissions are found to be two-photon processes, but with different quantum transition mechanisms. In addition, the dependence of UC emission intensity on the pumping power is studied. Our studies indicate that Nd:Y2O3 transparent ceramics are promising candidates as short-wavelength UC laser material.

中文翻译：

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Nd:Y2O3 透明陶瓷的高效上转换

摘要 研究了Nd:Y2O3透明陶瓷的上转换(UC)发光特性。结果表明，在 808 nm 的激光激发下，样品表现出显着的 UC 发射。随着Nd3+浓度的增加，绿光发射强度降低，而红光发射强度先增大后减小。特别是，发现绿色和红色 UC 发射都是双光子过程，但具有不同的量子跃迁机制。此外，研究了 UC 发射强度对泵浦功率的依赖性。我们的研究表明，Nd:Y2O3 透明陶瓷是有希望作为短波长 UC 激光材料的候选材料。