High-efficiency 355 nm generation in barium aluminum borate diflouride (BaAlBO3F2).
High-efficiency 355 nm generation in barium aluminum borate diflouride (BaAlBO3F2).
复制标题
DOI：
10.1364/ol.34.000746
复制
发表时间：
2009-03
期刊：
影响因子：
3.6
通讯作者：
Yong Zhou;Guiling Wang;Y. Yue;Chengming Li;Yuanfu Lu;D. Cui;Zhanggui Hu;Zu-Yan Xu
中科院分区：
文献类型：
--
作者：
Yong Zhou;Guiling Wang;Y. Yue;Chengming Li;Yuanfu Lu;D. Cui;Zhanggui Hu;Zu-Yan Xu
我们展示了在非线性光学晶体BaAlBO3F2 （BABF）中高效紫外（UV）激光的产生；利用I型BABF晶体将皮秒Nd:YAG激光器的基频光和次谐波以和频混合的方式产生355nm紫外光，重复频率为10hz，脉冲持续时间为20ps，三谐波输出为0.635 mJ。转化效率为26.4%。据我们所知，这是BABF首次实现三次谐波生成。显然，BABF晶体具有较大的非线性系数和不吸湿性，是一种很有前途的紫外非线性光学材料。
We demonstrate high-efficiency ultraviolet (UV) laser generation in a nonlinear optical crystal BaAlBO3F2 (BABF); 355 nm UV light was generated by using a type I BABF crystal as a sum-frequency mixing of the fundamental light and the second harmonic from a picosecond Nd:YAG laser operated at a repetition rate of 10 Hz with a pulse duration of 20 ps. An output of 0.635 mJ for the third harmonic was obtained. The conversion efficiency was 26.4%. As far as we know, it was the first time that third-harmonic generation in BABF was achieved. Obviously, the BABF crystal is a promising UV nonlinear optical material because of its relatively large nonlinear coefficient and nonhygroscopicity.