Natural Cone Formation for Fast Ignition of Laser Fusion
YANG Xiao-Qing1, LEI An-Le1,2, YU Wei1, TANAKA Kazuo2
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002Institute of Laser Engineering and Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
Natural Cone Formation for Fast Ignition of Laser Fusion
YANG Xiao-Qing1;LEI An-Le1,2;YU Wei1;TANAKA Kazuo2
1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002Institute of Laser Engineering and Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
摘要We propose to utilize the leading pulse of a petawatt class laser to create a conic plasma channel in the dense plasmas. This plasma channel could serve as a natural cone to guide the main pulse to the cone tip, as behaves similarly to the physical Au cone. We estimate that the leading pulse of a petawatt laser could create a natural cone with cone tip only about 100μm away from the edge of compressed core plasma. The natural cone formation should be compatible for a good uniform compression and efficient fast heating of the imploded fuel.
Abstract：We propose to utilize the leading pulse of a petawatt class laser to create a conic plasma channel in the dense plasmas. This plasma channel could serve as a natural cone to guide the main pulse to the cone tip, as behaves similarly to the physical Au cone. We estimate that the leading pulse of a petawatt laser could create a natural cone with cone tip only about 100μm away from the edge of compressed core plasma. The natural cone formation should be compatible for a good uniform compression and efficient fast heating of the imploded fuel.
(Self-focussing, channeling, and filamentation in plasmas)
引用本文:
YANG Xiao-Qing;LEI An-Le;YU Wei;TANAKA Kazuo. Natural Cone Formation for Fast Ignition of Laser Fusion[J]. 中国物理快报, 2008, 25(6): 2151-2153.
YANG Xiao-Qing, LEI An-Le, YU Wei, TANAKA Kazuo. Natural Cone Formation for Fast Ignition of Laser Fusion. Chin. Phys. Lett., 2008, 25(6): 2151-2153.
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