Tm:YAP晶体生长及光谱特性研究

无机材料学报, 2006, 21(4): 838-842. doi: 10.3724/SP.J.1077.2006.00838

Tm:YAP晶体生长及光谱特性研究

陆燕玲 , 王俊 , 杨扬 , 李胜华 , 孙宝德 , 袁清习

1.1. 上海交通大学金属基复合材料国家重点实验室, 上海 200030

2. 2. 中国科学院北京高能物理研究所, 北京 100039

1.1. State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai 200030, China

2. 2. Beijing Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China

关键词： Tm:YAP晶体 , Czochralski method , segregation coefficient , spectral characteristic

Czochralski Growth and Spectral Characteristics of Tm:YAP Single Crystals

LU Yan-Ling , WANG Jun , YANG Yang , LI Sheng-Hua , SUN Bao-De , YUAN Qing-Xi

Keywords： Tm:YAP crystal , 提拉法 , 分凝系数 , 光谱特性

采用提拉法生长了掺杂浓度分别为4、8与10at%的Tm:YAP晶体. 测定了Tm³⁺在YAP基质中的分凝系数为0.88. 采用同步辐射的方法研究了Tm:YAP晶体的生长条纹和结构应力缺陷. 晶体的吸收峰位于694和795nm; 荧光谱峰值在2.0μm附近, 因此Tm:YAP晶体有望成为一种新型的适合LD泵浦的中红外激光材料.

YAP single crystals doped with 4at%, 8at% and 10at% Tm3+ ions were grown by the Czochralski method with MF induction heating. The segregation coefficient of Tm³⁺ ion in YAP crystal measured by X-ray fluorescence spectrum technique is about 0.88. Growth striation and structural stress were determined by synchrotron radiation white-beam topography (SRWBT). The absorption spectrum shows two peaks with wavelength of 694nm and 795nm, and the fluorescence peak is about 2.0μm, which suggest that Tm:YAP is one of the most promising mid-infrared laser crystals.

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