Enhanced proton acceleration via the leaky light-sail regime by laser interaction with nanofoils in strongly magnetized plasmas
Enhanced proton acceleration via the leaky light-sail regime by laser interaction with nanofoils in strongly magnetized plasmas
复制标题
通过激光与强磁化等离子体中的纳米箔相互作用，通过泄漏光帆状态增强质子加速
DOI：
10.1063/5.0007210
复制
发表时间：
2020-06
影响因子：
2.2
通讯作者：
Baozhen Zhao
中科院分区：
文献类型：
--
作者：
Chong Lv;Xianghao Meng;Zhao Wang;Lihua Cao;Feng Wan;Qiushi Liu;Xiaohua Zhang;Baozhen Zhao
An enhancing proton acceleration scheme is proposed by applying an external axial magnetic field in the leaky light-sail regime when a.right-hand circularly polarized laser interacts with a multispecies nanofoil. In this scheme, the external axial magnetic field B0 can not only.enhance the intensity of the accelerating electric field but also adjust the spatial distribution of the accelerating electric field. It is shown by.2D3V particle-in-cell simulations that a monoenergetic proton beam could be produced in the case of B0 ¼ 2. Compared with the case of.B0 ¼ 0, the peak energy increases by 50% and the number improves by a factor of two when the laser intensity is 3:4 1019 W=cm2. Besides,.the angle divergence of protons can be greatly improved by manipulating the shape of accelerating electric field from concave to convex.under the influence of the B0 ¼ 2. These results may be helpful to understand the process of particle motion in a strongly magnetized.plasma.
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