论文标题
飞秒激光 - 血浆果皮方案的电子和离子加速度
Electron and ion acceleration from femtosecond laser-plasma peeler scheme
论文作者
论文摘要
使用三维粒子中的粒子模拟，我们进一步研究了飞秒激光 - 血浆果皮方案的电子和离子加速度，这是在我们最近的论文中提出的（Shen et al 2021Phys。Rev.X 11 041002）。除了标准设置外，还提出了激光脉冲撞击单个胶带目标边缘的两个新变体，即平行胶带和横文带目标，其中还提出了强烈的表面等离子体波，也可以在目标的前边缘有效地激发。通过使用桌面200 Tw-Class激光脉冲，我们可以观察到产生的高频率，良好的超源性电子电子。更重要的是，在所有三个设置中始终可以获得quasimonoenergetic质子梁，而单胶壳，所获得的质子束具有最高峰值和最狭窄的光谱。
Using three-dimensional particle-in-cell simulations, we further investigate the electron and ion acceleration from femtosecond laser-plasma peeler scheme which was proposed in our recent paper (Shen et al 2021 Phys. Rev. X 11 041002). In addition to the standard setup where a laser pulse impinges on an edge of a single tape target, two new variants of the target, i.e., a parallel tape and a cross tape target, were proposed, where strong surface plasma waves can also be efficiently excited at the front edges of the target. By using a tabletop 200 TW-class laser pulse, we observe generation of high-flux, well-collimated, superponderomotive electrons. More importantly, quasimonoenergetic proton beams can always be obtained in all the three setups, while with the single tape case, the obtained proton beam has the highest peak energy and narrowest spectrum.
