Optimization of proton beam quality by obliquely incident laser pre-pulse

被引:2
|
作者
Rahman, O. [1 ,2 ,3 ]
Li, Tian-Cheng [1 ]
Sheng, Zheng-Mao [1 ]
机构
[1] Zhejiang Univ, Inst Fus Theory & Simulat, Sch Phys, Hangzhou 310058, Peoples R China
[2] Zhejiang Univ, Sch Math Sci, Hangzhou 310058, Peoples R China
[3] Mawlana Bhashani Sci & Technol Univ, Dept Phys, Tangail 1902, Bangladesh
基金
中国国家自然科学基金;
关键词
ACCELERATION; GENERATION; ENHANCEMENT; REGIME;
D O I
10.1063/5.0130810
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
An investigation has been made to enhance the proton acceleration through the use of an additional obliquely incident lower intense pre-pulse. We observed by means of two-dimensional particle-in-cell simulation that the surface plasma waves can be generated on a flat target using a low-intensity pre-pulse, which is beneficial for enhancing the laser self-focusing and consequently boosting the proton acceleration. We noticed that the proton acceleration is driven by a hybrid acceleration process. The obtained proton beam peak energy and the maximum energy are found to increase by about 205% and 68%, respectively, for the case with pre-pulse in comparison to the cases where the pre-pulse is absent. Moreover, significant degradation of the proton beam energy spread and angular divergence are also seen.
引用
收藏
页数:6
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