激光晶体Zr∶Yb∶LiNbO3的生长及光谱性质研究

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激光晶体Zr∶Yb∶LiNbO3的生长及光谱性质研究
Growth and Spectra Property of Laser Crystals Zr∶ Yb∶ LiNbO3
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作　　者：李百中[1] 李铮[1] 施振华[1] 刘有臣[1] 张沛雄[1,2] 程继萌[1] 杭寅[1]
LI Bai-zhong, LI Zheng ,SHI Zhen-hua, LIU You-chen,ZHANG,Pet-xtong,CHENG Ji-meng,HANG Yin（1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China;  2. University of Chinese Academy of Sciences, Beijing 100049, China）
机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]中国科学院大学,北京100049
出　　处：《人工晶体学报》 EI CSCD 2014年第43卷第11期 2767-2771页,共5页
Journal of Synthetic Crystals
基　　金：上海市高新技术领域科研项目（12521102702）
摘　　要：采用Czochralski技术分别生长了双掺Zr4＋（1mol%,2mol%,3mol%）和Yb3＋（0mol%,1mol%,1mol%）的Zr∶Yb∶Li Nb O3晶体。测试了晶体的XRD图谱并与标准图谱进行了比较。测量了晶体的红外透射光谱,OH-的振动吸收峰分别位于3485 cm-1、3488 cm-1和3488 cm-1,当Zr4＋浓度达到2mol%以后,继续增大Zr4＋浓度,OH-的振动吸收峰不发生移动。研究了晶体的室温吸收、发射光谱和荧光寿命特性,表明Zr∶Yb∶Li Nb O3晶体是一种潜在的可用来发展具有抗光损伤的新型激光晶体材料。
Zr ∶ Yb ∶ Li Nb O3 crystals co-doped with different concentrations of Zr4 ＋（ 1mol%,2mol%,3mol%） and different concentrations of Yb3 ＋（ 0mol%,1mol%,1mol%） were grown by Czochralski technique,respectively. The as-grown crystals were characterized by XRD and compared with the standard XRD card. The infrared transmission spectrum of the crystals were measured. The results show that the OH-absorption peaks were located at 3485 cm- 1,3488 cm- 1and 3488 cm- 1,respectively. The OH-vibration absorption peak doesn ’ t move with the Zr4 ＋concentration increase from 2mol%.Investigation of the room temperature absorption and emission spectra and fluorescence lifetime indicat that Zr∶ Yb ∶ Li Nb O3 crystal is a potential candidate for a laser gain material to develop higher optical damage threshold laser device.
关键词：Zr∶Yb∶LiNbO3晶体 Czochralski法 晶体生长 光谱性质
Zr∶ Yb∶ LiNbO3 crystal ;Czochralski method ;crystal growth ;spectra property ;