Yb,Ho∶GdScO3晶体生长及光谱性能分析

人工晶体学报 ›› 2023, Vol. 52 ›› Issue (7): 1243-1249.

• 大尺寸激光晶体材料制备的关键技术与应用研究 • 上一篇下一篇

Yb,Ho∶GdScO₃晶体生长及光谱性能分析

孙贵花^1,2, 张庆礼^1,2, 李加红^1,2,3, 罗建乔^1,2, 王小飞^1,2, 高进云^1,2

1.中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽省光子器件与材料重点实验室,合肥 230031;
2.先进激光技术安徽省实验室,合肥 230031;
3.中国科学技术大学环境科学与光电技术学院,合肥 230026

收稿日期:2023-05-15 出版日期:2023-07-15 发布日期:2023-08-16
作者简介:孙贵花(1984—),女,山东省人,博士,研究员。E-mail:ghsun@aiofm.ac.cn
基金资助:
国家重点研发计划(2022YFB3605700);先进激光技术安徽省实验室主任基金(AHL20220ZR04)

Crystal Growth and Spectral Properties of Yb,Ho∶GdScO₃ Crystal

SUN Guihua^1,2, ZHANG Qingli^1,2, LI Jiahong^1,2,3, LUO Jianqiao^1,2, WANG Xiaofei^1,2, GAO Jinyun^1,2

1. Anhui Provincial Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China;
2. Advanced Laser Technology Laboratory of Anhui Province, Hefei 230031,China;
3. School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, China

Received:2023-05-15 Online:2023-07-15 Published:2023-08-16

摘要/Abstract

摘要： 采用提拉法生长出了尺寸为ø30 mm×50 mm的Yb,Ho∶GdScO₃晶体。通过X射线衍射得到了晶体的粉末衍射数据,使用GSAS软件进行了全谱拟合,得到了晶体的结构参数。测试了晶体的拉曼光谱,在100~700 cm^-1观察到18个拉曼振动峰。对Yb,Ho∶GdScO₃晶体的光谱特性进行了表征,并计算了Yb³⁺的吸收截面,其在940、975 nm处的吸收截面分别为0.31×10^-20、0.42×10^-20 cm²。采用Judd-Ofelt理论计算了Ho³⁺的跃迁强度参量Ω_t,Ω₄/Ω₆值为2.04,并计算了辐射跃迁概率、能级寿命及荧光分支比等光谱参数。结果表明,Yb,Ho∶GdScO₃晶体的发光性能良好,是一种有前景的2~3 μm激光晶体候选材料。

关键词: 2~3 μm激光, Yb,Ho∶GdScO₃晶体, 晶体生长, 光谱性能, Judd-Ofelt理论

Abstract: As a kind of excellent host material for solid-state lasers, GdScO₃ crystal has attracted more and more attention. In this paper, Yb,Ho∶GdScO₃ crystal with the size of ø30 mm×50 mm was firstly grown by Czochralski growth method. The powder diffraction data were obtained by X-ray diffraction, and the structure parameters were fitted by GSAS software. Raman spectra were measured. In the range of 100 to 700 cm^-1, there are 18 Raman vibration peaks were observed. The spectral properties including transmission and emission of Yb,Ho∶GdScO₃ crystal were characterized. The center of the strongest absorption band is at 975 nm, which comes from the transition of Yb³⁺∶²F_7/2→²F_5/2. The absorption cross section of Yb³⁺ were calculated and the values at 940, 975 nm are 0.31×10^-20 and 0.42×10^-20 cm². The transition intensity parameter (Ω_t) of Ho³⁺ was calculated by Judd-Ofelt theory, Ω₄/Ω₆ is 2.04. And spectral parameters such as radiation transition probability, energy level lifetime and fluorescence branching ratio were calculated. The results show that Yb,Ho∶GdScO₃ is a promising candidate material for 2~3 μm laser crystals because of its excellent luminescence properties.

Key words: 2~3 μm laser, Yb,Ho∶GdScO₃ crystal, crystal growth, optical property, Judd-Ofelt theory

中图分类号:

O78
O641

孙贵花, 张庆礼, 李加红, 罗建乔, 王小飞, 高进云. Yb,Ho∶GdScO₃晶体生长及光谱性能分析[J]. 人工晶体学报, 2023, 52(7): 1243-1249.

SUN Guihua, ZHANG Qingli, LI Jiahong, LUO Jianqiao, WANG Xiaofei, GAO Jinyun. Crystal Growth and Spectral Properties of Yb,Ho∶GdScO₃ Crystal[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2023, 52(7): 1243-1249.

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Yb,Ho∶GdScO₃晶体生长及光谱性能分析

Crystal Growth and Spectral Properties of Yb,Ho∶GdScO₃ Crystal

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