Chinese Optics Letters, 2016, 14 (5): 051601, Published Online: Aug. 6, 2018  

Preliminary study of the damage resistance of type I doubler KDP crystals at 532  nm

Author Affiliations
Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
Abstract
This Letter is concerned with the influence of polarization on the damage performance of type I doubler potassium dihydrogen phosphate crystals grown by the conventional growth method under 532 nm pulse irradiation. Pinpoint density (ppd) and the size distribution of pinpoints are extracted through light scattering pictures captured by microscope. The results show that the ppd of polarization that parallels the extraordinary axis is around 1.5× less than that of polarization that parallels the ordinary axis under the same fluence, although polarization has no influence on size distribution of pinpoints. We also find that the size distribution is independent of fluence, although the number of pinpoints grows with fluence.

Yinbo Zheng, Lei Ding, Xinda Zhou, Rongsheng Ba, Jing Yuan, Honglei Xu, Xiaoyu Yang, Bo Chen, Jin Na, Yajun Li, Wanguo Zheng. Preliminary study of the damage resistance of type I doubler KDP crystals at 532  nm[J]. Chinese Optics Letters, 2016, 14(5): 051601.

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