Single crystal growth and nonlinear optical properties of Nd3+ doped STGS crystal for self-frequency-doubling application
Single crystal growth and nonlinear optical properties of Nd3+ doped STGS crystal for self-frequency-doubling application
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用于自倍频应用的 Nd3 掺杂 STGS 晶体的单晶生长和非线性光学特性
DOI：
10.1016/j.optmat.2017.07.045
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发表时间：
2017
影响因子：
3.9
通讯作者：
Zhao Xian
中科院分区：
文献类型：
--
作者：
Chen Feifei;Wang Lijuan;Wang Xinle;Cheng Xiufeng;Yu Fapeng;Wang Zhengping;Zhao Xian
自倍频晶体是一类重要的多功能晶体材料。本文采用提拉法生长了掺Nd：STGS（Sr3TaGa3Si2O14）晶体，并对其非线性和激光倍频特性进行了研究。在沿着不同的物理轴上展示了1064 nm的连续波激光，其中对于Z切割样品获得的最大输出功率为295 mW，远高于Y切割（242 mW）和X切割（217 mW）样品。根据测量的折射率，讨论并确定了I型（42.5°，30 °）和II型（69.5°，0 °）晶体切割的相位匹配方向。实验结果表明，在529 nm处获得了自倍频绿色激光输出，I型和II型结构的输出功率分别为16 mW和12 mW。
The self-frequency-doubling crystal is an important kind of multi-functional crystal materials. In this work, Nd3+doped Sr3TaGa3Si2O14(Nd:STGS) single crystals were successfully grown by using Czochralski pulling method, in addition, the nonlinear and laser-frequency-doubling properties of Nd:STGS crystals were studied. The continuous-wave laser at 1064 nm was demonstrated along different physical axes, where the maximum output power was obtained to be 295 mW for the Z-cut samples, much higher than the Y-cut (242 mW) and X-cut (217 mW) samples. Based on the measured refractive indexes, the phase matching directions were discussed and determined for type I (42.5°, 30°) and type II (69.5°, 0°) crystal cuts. As expected, self-frequency-doubling green laser at 529 nm was achieved with output powers being around 16 mW and 12 mW for type I and type II configurations, respectively.