检索结果-南通市图书馆

Experiments and analysis of gold disk targets irradiated by smoothing beams of Xingguang Ⅱ facilities with 350 nm wavelength

引用

Science China(Physics,Mechanics & Astronomy) 2007年第6期50卷 716-730页

作者： JIANG ShaoEn ZHANG BaoHan LIU ShenYe YANG JiaMin SUN KeXu HUANG TianXuan DING YongKun ZHENG ZhiJian National Key Laboratory of Laser Fusion Laser Fusion Research CenterMianyang 621900China

Gold disk targets were irradiated using focusing and beam smoothing methods on Xingguang (XG-Ⅱ) laser facilities with 350 nm wavelength,0.6 ns pulse width and 20-80 Joules energies. Laser absorption,light scattering and X-ray conversion were experimentally investigated. The experimental results showed that laser ab-sorption and scattered light were about 90% and 10%,respectively,under focusing irradiation,but the laser absorption increased 5%-10% and the scattered light about 1% under the condition of beam smoothing. Compared with the case of fo-cusing irradiation,the laser absorption was effectively improved and the scattered light remarkably dropped under uniform irradiation; then due to the decrease in laser intensity,X-ray conversion increased. This is highly advantageous to the in-ertial confinement fusion. However,X-ray conversion mechanism basically did not change and X-ray conversion efficiency under beam smoothing and focusing irra-diation was basically the same.

关键词： beam smoothing lens array laser absorption scattered light X-ray conversion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A 100-PW compressor based on single-pass single-grating pair

引用

High Power Laser Science and Engineering 2023年第1期11卷 26-37页

作者： Shuman Du Xiong Shen Wenhai Liang Peng Wang Jun Liu Ruxin Li State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina Zhangjiang Laboratory ShanghaiChina

A multistep pulse compressor(MPC)based on a single-pass single-grating pair(SSGP)is proposed to simplify the entire multi-petawatt(PW)*** one grating pair with relatively long perpendicular distance is used to generate the same amount of spectral chirp compared with a four-grating main *** SSGP compressor induces the largest spatial chirp,it can introduce the best beam-smoothing effect to the laser beam on the last *** considering the diffraction loss of only two gratings,the total compression efficiency of the SSGP compressor is even larger than that of a four-grating main ***,the wavefront aberration induced by the SSGP compressor can be better compensated by using deformable mirrors;however,it is difficult or complicated to be well compensated in a four-grating *** 50-100 PW laser pulses can be obtained using this SSGP-based multistage-smoothing MPC with a single laser beam.

关键词： beam smoothing multistep pulse compressor petawatt single-grating-pair compressor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Laser performance upgrade for precise ICF experiment in SG-Ⅲ laser facility

引用

Matter and Radiation at Extremes 2017年第5期2卷 243-255页

作者： Wanguo Zheng Xiaofeng Wei Qihua Zhu Feng Jing Dongxia Hu Xiaodong Yuan Wanjun Dai Wei Zhou Fang Wang Dangpeng Xu Xudong Xie Bin Feng Zhitao Peng Liangfu Guo Yuanbin Chen Xiongjun Zhang Lanqin Liu Donghui Lin Zhao Dang Yong Xiang Rui Zhang Fang Wang Huaiting Jia Xuewei Deng Laser Fusion Research Center China Academy of Engineering PhysicsP.O.Box 919-988Mianyang621900China IFSA Collaborative Innovation Center Shanghai Jiao Tong UniversityShanghai200240China

The SG-Ⅲlaser facility(SG-Ⅲ)is the largest laser driver for inertial confinement fusion(ICF)researches in China,which has 48 beamlines and can deliver 180 kJ ultraviolet laser energy in 3 *** order to meet the requirements of precise physics experiments,some new functionalities need to be added to SG-Ⅲand some intrinsic laser performances need *** at the end of SG-Ⅲ's engineering construction,the 2-year laser performance upgrade project *** paper will introduce the newly added functionalities and the latest laser performance of SG-Ⅲ.With these function extensions and performance upgrade,SG-Ⅲis now fully prepared for precise ICF experiments and solidly paves the way towards fusion ignition.

关键词： Inertial confinement fusion Laser driver SG-III Power balance beam smoothing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of bandwidth on the intensities of an apertured laser in the near and far fields

Effect of bandwidth on the intensities of an apertured laser...

引用

20th Congress of the International Commission for Optics

作者： Runwu Peng a 1 Yunxia Ye a b Zhixiang Tang a Dianyuan Fan aa Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences P. O. Box 800-211 Shanghai 201800 China b Mechanical Engineering College Jiangsu University Zhenjiang 212013 China

By means of the Huygens-Fresnel diffraction integral, the propagation expression of a laser beam passing through a hard-edged aperture is derived. The effects of the bandwidth on the transverse intens

关键词： broadband laser bandwidth beam smoothing hard-edged aperture transverse intensity distribution

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：