Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma
	Tian, Ye; Liu, Jiansheng; Li, Wentao; Zhang, Zhijun; Qi, Rong; Wang, Wentao; Wang, Cheng; Yu, Changhai
刊名	Plasma Phys. Control. Fusion
	2016
卷号	58 期号:5
通讯作者	tianye@siom.ac.cn ; michaeljs_liu@siom.ac.cn
英文摘要	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.
收录类别	SCI
资助信息	National Natural Science Foundation of China [11425418, 11405244, 61221064]; Natural Science Foundation of Shanghai [14ZR1444800]
WOS记录号	WOS:000375232300015
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28723]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
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	Tian, Ye,Liu, Jiansheng,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	Tian, Ye.,Liu, Jiansheng.,Li, Wentao.,Zhang, Zhijun.,Qi, Rong.,...&Yu, Changhai.(2016).Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma.Plasma Phys. Control. Fusion,58(5).
MLA	Tian, Ye,et al."Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma".Plasma Phys. Control. Fusion 58.5(2016).