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Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma
Yu, Changhai; Tian, Ye; Li, Wentao; Zhang, Zhijun; Qi, Rong; Wang, Wentao; Wang, Cheng; Liu, Jiansheng; tianye@siom.ac.cn; michaeljs_liu@siom.ac.cn
2016
发表期刊Plasma Phys. Control. Fusion
卷号58期号:5
摘要In this study, plasma channel formation in pure He plasma (ionization electron density 0.01-0.1n(c)) interacting with ultra-short relativistic laser pulses (50 fs, >10(19) W cm(-2)) was observed and analyzed. By appropriately selecting the laser pulse and gas backing pressure of the gas jet, a clear density channel longer than 300 mu m and wider than 25 mu m was achieved in less than 1.5 ps following the passage of the laser pulse, with a radial electron density gradient of similar to 10(23) cm(-4) at the channel walls. Numerical simulations for studying the affects of the plasma density, kinetic motion of electrons and ions, and nonlinear laser propagation on the plasma channel formation were carried out, which reproduced the experimental features. These density channels were mainly driven by the radial expulsion of plasma ions, with strong continuous laser self-focusing acting to improve the channeling efficiency. These channels can guide the propagation of ultra-intense laser pulses and supply several advanced applications in high-energy physics, including fast-ignition inertial confinement fusion, plasma-based particle accelerations, and sources of radiation.
文章类型Article
部门归属强光
DOI10.1088/0741-3335/58/5/055007
资助者National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800] ; National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800] ; National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800] ; National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800]
收录类别SCI
资助者National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800] ; National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800] ; National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800] ; National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800]
WOS记录号WOS:000375232300015
引用统计
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/27735
专题强场激光物理国家重点实验室
通讯作者tianye@siom.ac.cn; michaeljs_liu@siom.ac.cn
作者单位中国科学院上海光学精密机械研究所
推荐引用方式
GB/T 7714
Yu, Changhai,Tian, Ye,Li, Wentao,et al. Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma[J]. Plasma Phys. Control. Fusion,2016,58(5).
APA Yu, Changhai.,Tian, Ye.,Li, Wentao.,Zhang, Zhijun.,Qi, Rong.,...&michaeljs_liu@siom.ac.cn.(2016).Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma.Plasma Phys. Control. Fusion,58(5).
MLA Yu, Changhai,et al."Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma".Plasma Phys. Control. Fusion 58.5(2016).
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