Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils

doi:10.1088/1674-1056/19/7/075203

中国物理B ›› 2010, Vol. 19 ›› Issue (7): 75203-075203.doi: 10.1088/1674-1056/19/7/075203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils

刘明伟, 李儒新, 夏长权, 刘建胜, 徐至展

State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

出版日期:2010-07-15 发布日期:2010-07-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10734080), the National Basic Research Program of China (Grant No. 2006CB806000), the Chinese Academy of Sciences, the Shanghai Commission of Science and Technology (Grant Nos. 06DZ22015 and 0652nm005), and the Hunan Provincial Natural Science Foundation of China (Grant No. 09JJ3012).

Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils

Liu Ming-Wei (刘明伟), Li Ru-Xin (李儒新), Xia Chang-Quan (夏长权), Liu Jian-Sheng (刘建胜), Xu Zhi-Zhan (徐至展)

State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

Online:2010-07-15 Published:2010-07-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10734080), the National Basic Research Program of China (Grant No. 2006CB806000), the Chinese Academy of Sciences, the Shanghai Commission of Science and Technology (Grant Nos. 06DZ22015 and 0652nm005), and the Hunan Provincial Natural Science Foundation of China (Grant No. 09JJ3012).

摘要/Abstract

摘要： A general solution of the electrostatic potential that determines the maximum light-ion energy is derived for the test-particle acceleration model by taking into account the influence of the substrate-ion density gradient. It is shown that the substrate-ion density structure is also dependent on laser pulse duration. In the picosecond or sub-picosecond regime, the decreasing density gradient of the substrate-ions leads to an evident reduction in the acceleration efficiency of the light-ions. However, this kind of influence is negligible in the ultrashort regime.

Abstract: A general solution of the electrostatic potential that determines the maximum light-ion energy is derived for the test-particle acceleration model by taking into account the influence of the substrate-ion density gradient. It is shown that the substrate-ion density structure is also dependent on laser pulse duration. In the picosecond or sub-picosecond regime, the decreasing density gradient of the substrate-ions leads to an evident reduction in the acceleration efficiency of the light-ions. However, this kind of influence is negligible in the ultrashort regime.

Key words: laser—plasma interaction, ion acceleration, substrate-ion density gradient

中图分类号: (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))

52.50.Jm

52.25.Dg (Plasma kinetic equations)

刘明伟, 李儒新, 夏长权, 刘建胜, 徐至展. Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils[J]. 中国物理B, 2010, 19(7): 75203-075203.

Liu Ming-Wei (刘明伟), Li Ru-Xin (李儒新), Xia Chang-Quan (夏长权), Liu Jian-Sheng (刘建胜), Xu Zhi-Zhan (徐至展). Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils[J]. Chin. Phys. B, 2010, 19(7): 75203-075203.

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Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils

Effects of substrate-ion density gradients on light-ion acceleration from ultraintense laser pulse irradiated thin-foils

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