Author:
Chen Duanyang,Wang Bin,Wang Hu,Zhu Xiangyu,Xu Ziyuan,Zhao Yuanan,Wang Shenghao,Ni Kaizao,Zheng Lili,Zhang Hui,Qi Hongji,Shao Jianda
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.
Publisher
Cambridge University Press (CUP)
Subject
Nuclear Energy and Engineering,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
13 articles.
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