中国激光, 2017, 44 (9): 0903001, 网络出版: 2017-09-07
Yb3+掺杂铋酸盐玻璃的发光特性 下载: 900次
Luminescence Properties of Yb3+-Doped Bismuthate Glass
材料 Yb3+掺杂铋酸盐玻璃 光谱特性 激光评估参数 荧光俘获效应 能量转移 materials Yb3+-doped bismuthate glass luminescence properties laser evaluation parameters radiation trapping effect energy transfer
摘要
研究了Yb3+掺杂铋酸盐玻璃的发光特性参数, 讨论了Yb2+、Bi3+等缺陷淬灭中心与Yb3+之间的能量转移。对于已优化的基质组成, 在荧光寿命没有大幅下降的前提下, 玻璃中Yb3+近红外波段的发射截面明显增大, 吸收截面减小, 激光增益能力和饱和抽运强度均得到提高。采用有效的除羟基工艺, 玻璃中不会产生比磷酸盐玻璃中更为严重的Yb3+发光淬灭效应, 但铋酸盐玻璃中还可能存在Yb2+、Bi3+等价态不稳定的缺陷淬灭中心。
Abstract
The luminescence property parameters of the Yb3+-doped bismuthate glass are investigated, and the energy transfer from those defect quenching centers such as Yb2+ and Bi3+ to Yb3+ is also discussed. Based on the optimized matrix composition and without the sharp decline of the fluorescence lifetime, the near-infrared emission cross-section of Yb3+ in glass is obviously increased, the absorption cross-section is reduced, and the capability of laser gain and the saturation pump intensity are both enhanced. By the efficient dehydroxyl process, the luminescence quenching effect of Yb3+ in the bismuthate glass may not be stronger than that in the phosphate glass. However, there exist probably some defect quenching centers such as Bi3+ and Yb2+ with unstable valence states in the bismuthate glass.
汪韬, 范慧艳, 赵国营, 程继萌, 陈伟, 胡丽丽, , . Yb3+掺杂铋酸盐玻璃的发光特性[J]. 中国激光, 2017, 44(9): 0903001. Wang Tao, Fan Huiyan, Zhao Guoying, Cheng Jimeng, Chen Wei, Hu Lili, Guzik Malgorzata, Boulon Georges. Luminescence Properties of Yb3+-Doped Bismuthate Glass[J]. Chinese Journal of Lasers, 2017, 44(9): 0903001.