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Studies on design of 351 nm focal plane diagnostic system prototype and focusing characteristic of SGII-upgraded facility at half achievable energy performance
Liu, Chong; Ji, Lailin; Yang, Lin; Zhao, Dongfeng; Zhang, Yanfeng; Liu, Dong; Zhu, Baoqiang; Lin, Zunqi; jsycjll@siom.ac.cn
2016
发表期刊Appl. Optics
卷号55期号:10页码:2800
摘要In order to obtain the intensity distribution of a 351 nm focal spot and smoothing by spectral dispersion (SSD) focal plane profile of a SGII-upgraded facility, a type of off-axis imaging system with three spherical mirrors, suitable for a finite distance source point to be imaged near the diffraction limit has been designed. The quality factor of the image system is 1.6 times of the diffraction limit tested by a 1053 nm point source. Because of the absence of a 351 nm point source, we can use a Collins diffraction imaging integral with respect to lambda = 351 nm, corresponding to a quality factor that is 3.8 times the diffraction limit at 351 nm. The calibration results show that at least the range of +/- 10 mrad of view field angle and +/- 50 mm along the axial direction around the optimum object distance can be satisfied with near diffraction limited image that is consistent with the design value. Using this image system, the No. 2 beam of the SGII-upgraded facility has been tested. The test result of the focal spot of final optics assembly (FOA) at 351 nm indicates that about 80% of energy is encompassed in 14.1 times the diffraction limit, while the output energy of the No. 2 beam is 908 J at 1053 nm. According to convolution theorem, the true value of a 351 nm focal spot of FOA is about 12 times the diffraction limit because of the influence of the quality factor. Further experimental studies indicate that the RMS value along the smoothing direction is less than 15.98% in the SSD spot test experiment. Computer simulations show that the quality factor of the image system used in the experiment has almost no effect on the SSD focal spot test. The image system can remarkably distort the SSD focal spot distribution under the circumstance of the quality factor 15 times worse than the diffraction limit. The distorted image shows a steep slope in the contour of the SSD focal spot along the smoothing direction that otherwise has a relatively flat top region around the focal spot center. (C) 2016 Optical Society of America
文章类型Article
部门归属联合
DOI10.1364/AO.55.002800
资助者National Natural Science Foundation of China (NSFC) [U1330129] ; National Natural Science Foundation of China (NSFC) [U1330129] ; National Natural Science Foundation of China (NSFC) [U1330129] ; National Natural Science Foundation of China (NSFC) [U1330129]
收录类别SCI
资助者National Natural Science Foundation of China (NSFC) [U1330129] ; National Natural Science Foundation of China (NSFC) [U1330129] ; National Natural Science Foundation of China (NSFC) [U1330129] ; National Natural Science Foundation of China (NSFC) [U1330129]
WOS记录号WOS:000373400800043
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/27914
专题高功率激光物理国家实验室
通讯作者jsycjll@siom.ac.cn
作者单位中国科学院上海光学精密机械研究所
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GB/T 7714
Liu, Chong,Ji, Lailin,Yang, Lin,et al. Studies on design of 351 nm focal plane diagnostic system prototype and focusing characteristic of SGII-upgraded facility at half achievable energy performance[J]. Appl. Optics,2016,55(10):2800.
APA Liu, Chong.,Ji, Lailin.,Yang, Lin.,Zhao, Dongfeng.,Zhang, Yanfeng.,...&jsycjll@siom.ac.cn.(2016).Studies on design of 351 nm focal plane diagnostic system prototype and focusing characteristic of SGII-upgraded facility at half achievable energy performance.Appl. Optics,55(10),2800.
MLA Liu, Chong,et al."Studies on design of 351 nm focal plane diagnostic system prototype and focusing characteristic of SGII-upgraded facility at half achievable energy performance".Appl. Optics 55.10(2016):2800.
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