MeV surface fast electron emission from femtosecond laser pulses interacting with planar and nanowire targets

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

	MeV surface fast electron emission from femtosecond laser pulses interacting with planar and nanowire targets
	Tian, Ye ; Liu, Jiansheng ; Wang, Wentao ; Wang, Cheng ; Lu, Xiaoming ; Leng, Yuxin ; Liang, Xiaoyan ; Li, Ruxin ; Xu, Zhizhan
刊名	plasma phys. control. fusion
	2014
卷号	56 期号:7 页码:75021
关键词	fast ignition fast electrons nanowire target
通讯作者	tian, y (reprint author), chinese acad sci, shanghai inst opt & fine mech, state key lab high field laser phys, shanghai 201800, peoples r china.
英文摘要	the mechanics of generating mev target surface fast electrons (sfes) is investigated using a 5 j, 50 fs laser pulse focused on a cu planar and nanowire target. the energy spectrum and spatial angular distribution of fast electrons emitted from the planar target are determined and compared with those from the nanowire target. when the laser intensity reaches 1 x 10(19) w cm(-2), the coupling from the laser to 1-3 mev electrons reaches 1.1% on the planar target at a 45 degrees incidence angle, while the number of sfes generated from the nanowire target is about 10% of those from the planar target. the two-dimensional particle-in-cell simulation results reproduce the electron emission characteristics and reveal a strong continuous surface magnetic field on the surface of the planar target as compared with the discrete magnetic field on the nanowire target which decreases sfes. a high, hot electron temperature in the forward direction at 556 kev is achieved for the nanowire structure capable of guiding and confining fast electrons along the wire direction, compared with 178 kev for the planar target.
收录类别	SCI
语种	英语
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/13305]
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	1.[Tian, Ye 2.Liu, Jiansheng 3.Wang, Wentao 4.Wang, Cheng 5.Lu, Xiaoming 6.Leng, Yuxin 7.Liang, Xiaoyan 8.Li, Ruxin 9.Xu, Zhizhan] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Tian, Ye,Liu, Jiansheng,Wang, Wentao,et al. MeV surface fast electron emission from femtosecond laser pulses interacting with planar and nanowire targets[J]. plasma phys. control. fusion,2014,56(7):75021.
APA	Tian, Ye.,Liu, Jiansheng.,Wang, Wentao.,Wang, Cheng.,Lu, Xiaoming.,...&Xu, Zhizhan.(2014).MeV surface fast electron emission from femtosecond laser pulses interacting with planar and nanowire targets.plasma phys. control. fusion,56(7),75021.
MLA	Tian, Ye,et al."MeV surface fast electron emission from femtosecond laser pulses interacting with planar and nanowire targets".plasma phys. control. fusion 56.7(2014):75021.