Up-conversion luminescence and near infrared luminescence of Er3+ in transparent oxyfluoride glass-ceramics
Up-conversion luminescence and near infrared luminescence of Er3+ in transparent oxyfluoride glass-ceramics
复制标题
DOI：
10.1016/j.optmat.2004.07.009
复制
发表时间：
2004-12
影响因子：
3.9
通讯作者：
X. Qiao;X. Fan;Min-quan Wang;Xianghua Zhang
中科院分区：
文献类型：
--
作者：
X. Qiao;X. Fan;Min-quan Wang;Xianghua Zhang
研究了Er ~（3+）在透明氟氧化物微晶玻璃中的上转换发光和近红外发光。通过XRD分析证实了玻璃中PbF 2纳米晶的形成。由吸收光谱得到了Er ~（3+）在玻璃和微晶玻璃中几个跃迁的振子强度，并通过最小二乘法拟合得到了Judd-Ofelt参数。由于Er 3+离子进入了β-PbF 2纳米晶的晶化环境，在微晶玻璃中观察到Er 3+离子的分裂近红外发射峰。Er ~（3+）在微晶玻璃中的上转换发光强度比在玻璃中的要强得多。上转换发光强度与LD激光器激发电流的关系表明，上转换发光的跃迁机制可以归结为双光子吸收过程。
The up-conversion luminescence and near infrared luminescence of the Er3+in transparent oxyfluoride glass-ceramics have been investigated. The formation of PbF2nano-crystals in the glass was confirmed by XRD. From optical absorption spectra, the oscillator strengths for several transitions of the Er3+in the glass and glass-ceramic have been obtained and then the Judd–Ofelt parameters were calculated by a least squares fitting. The split near infrared emission peaks of the Er3+ions in the glass-ceramics can be observed because the Er3+ions have entered into crystalline environment of the β-PbF2nano-crystals. The up-conversion luminescence intensity of the Er3+in the glass-ceramics can be observed to be much stronger than that in the glasses. The dependence of the up-conversion luminescence intensity on the current of the LD laser used as excited source indicated that the transition mechanism of the up-conversion luminescence can be ascribed to two-photon absorption process.