Main > High Power Laser Science and Engineering >  Volume 8 >  Issue 1 >  Page 010000e6 > Article
• Abstract
• Abstract
• Figures (7)
• Tables (1)
• Equations (5)
• References (45)
• Get PDF
• View Full Text
• Paper Information

Accepted: Dec. 11, 2019

Posted: Feb. 20, 2020

Published Online: Feb. 20, 2020

The Author Email: Hongji Qi (qhj@siom.ac.cn), Jianda Shao (jdshao@mail.shcnc.ac.cn)

• Get Citation
• ##### Copy Citation Text

Duanyang Chen, Bin Wang, Hu Wang, Xiangyu Zhu, Ziyuan Xu, Yuanan Zhao, Shenghao Wang, Kaizao Ni, Lili Zheng, Hui Zhang, Hongji Qi, Jianda Shao. Rapid growth of a long-seed KDP crystal[J]. High Power Laser Science and Engineering, 2020, 8(1): 010000e6

• Category
• Share

## Abstract

To reduce the seed length while maintaining the advantages of the cuboid KDP-type crystal, a long-seed KDP crystal with size $471~\text{mm}\times 480~\text{mm}\times 400~\text{mm}$ is rapidly grown. With almost the same high cutting efficiency to obtain third harmonic generation oriented samples, this long-seed KDP-type crystal can be grown with a shorter seed than that of the cuboid KDP-type crystal. The full width at half maximum of the high-resolution X-ray diffraction of the (200) crystalline face is 28.8 arc seconds, indicating that the long-seed KDP crystal has good crystalline quality. In the wavelength range of 377–1022 nm, the transmittance of the long-seed KDP crystal is higher than 90%. The fluence for the 50% probability of laser-induced damage (LID) is $18.5~\text{J}/\text{cm}^{2}$ (3 ns, 355 nm). Several test points survive when the laser fluence exceeds $30~\text{J}/\text{cm}^{2}$ (3 ns, 355 nm), indicating the good LID performance of the long-seed KDP crystal. At present, the growth of a long-seed DKDP crystal is under way.