Preparation and up-conversion luminescence properties of Er: YbAG and Er: YAG single crystals
Preparation and up-conversion luminescence properties of Er: YbAG and Er: YAG single crystals
复制标题
DOI：
10.1016/j.jmst.2023.10.038
复制
发表时间：
2023-12
期刊：
影响因子：
--
通讯作者：
Limin Wu;Zeyu Cheng;Shoulei Xu;Wen-Xin Wu;Yazhao Wang;Huiting Zhang;Zhonghua Zhu;Ninghan Zeng-Ninghan
中科院分区：
文献类型：
--
作者：
Limin Wu;Zeyu Cheng;Shoulei Xu;Wen-Xin Wu;Yazhao Wang;Huiting Zhang;Zhonghua Zhu;Ninghan Zeng-Ninghan
采用OFZ法成功地制备了Yb2.96Er0.04Al5O12和Y2.96Er0.04Al5O12的高质量立方光学单晶。Yb2.96Er0.04Al5O12晶体对980 nm光子的吸收强度远大于Y2.96Er0.04Al5O12晶体，透射率低于Y2.96Er0.04Al5O12晶体，这是因为Yb2.96Er0.04Al5O12单晶的密度（6.604 g/cm 3）大于Y2.96Er0.04Al5O12单晶的密度（4.529 g/cm 3）。在980 nm激光激发下，晶体的上转换发光光谱在λ 544和λ 556 nm，以及λ 650和λ 667 nm处出现多组明显的发射峰。Yb2.96Er0.04Al5O12晶体的上转换发光光谱的峰值强度远高于Y2.96Er0.04Al5O12晶体。总之，本研究结果表明，Yb 2. 96 Er 0. 04 Al 5 O 12单晶在固体激光器发光方面可能优于Y2. 96 Er 0. 04 Al 5 O 12单晶。
High quality optical single crystals of cubic Yb2.96Er0.04Al5O12and Y2.96Er0.04Al5O12were successfully prepared using the OFZ method. The 980 nm photon absorption intensity by Yb2.96Er0.04Al5O12crystal is much larger than that in Y2.96Er0.04Al5O12crystal, the transmission of Yb2.96Er0.04Al5O12crystal is lower than that of Y2.96Er0.04Al5O12crystal, because the density of Yb2.96Er0.04Al5O12single crystal (6.604 g/cm3) is larger than that of Y2.96Er0.04Al5O12single crystal (4.529 g/cm3). The up-conversion luminescence spectra of the crystals excited by 980 nm laser show several distinct groups of emission peaks at ∼544 and ∼556 nm, as well as ∼650 and ∼667 nm. The peak intensities of the up-conversion luminescence spectrum for the Yb2.96Er0.04Al5O12crystal were much higher than those for the Y2.96Er0.04Al5O12crystal. Overall, the results of the present study suggest that Yb2.96Er0.04Al5O12single crystal may have advantages over Y2.96Er0.04Al5O12single crystal for luminescence in solid-state lasers.