Effect of strontium ion on the growth and second-harmonic generation properties of GdCa4O(BO3)3 crystal

被引：4
|
作者：
Zhang, SJ [1 ]
Cheng, ZX [1 ]
Liu, JH [1 ]
Han, JR [1 ]
Wang, JY [1 ]
Shao, ZS [1 ]
Chen, HC [1 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2001年 / 18卷 / 01期
关键词：
D O I：
10.1088/0256-307X/18/1/322
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Large sized and optical quality GdCa4O(BO3)(3) (GdCOB) crystal with calcium partially substituted by strontium (Sr) ions was grown for the first time. The x-ray powder diffraction shows that the Sr ion has an effect on the cell parameters of the GdCOB crystal. Second-harmonic generation (SHG) experiments were performed on the Sr:GdCOB and GdCOB crystals along the spatial phase-matching direction. The results show that the cw green laser output power is 1.04 W when the laser diode pump power is 10 W in the Nd:YVO4/Sr:GdCOB intracavity laser. Considering the slope efficiency of Nd:YVO4 and the fundamental laser in cavity, the intracavity SHG conversion efficiency of the GdCOB crystal is 21% while it is 24% for the Sr:GdCOB crystal, the SHG conversion efficiency is improved try 14%. The effect of the Sr ions on the nonlinearity of the GdCOB crystal is also discussed by using the anion group theory.
引用
收藏
页码：63 / 64
页数：2
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