Jiang S, Krygier A G, Schumacher D W, Akli K U, Freeman R R
Physics Department, The Ohio State University, Columbus, Ohio 43210, USA.
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Jan;89(1):013106. doi: 10.1103/PhysRevE.89.013106. Epub 2014 Jan 21.
We report the results of a study of the role of prescribed geometrical structures on the front of a target in determining the energy and spatial distribution of relativistic laser-plasma electrons. Our three-dimensional particle-in-cell simulation studies apply to short-pulse, high-intensity laser pulses, and indicate that a judicious choice of target front-surface geometry provides the realistic possibility of greatly enhancing the yield of high-energy electrons while simultaneously confining the emission to narrow (<5°) angular cones.
我们报告了一项关于靶体前端规定几何结构在确定相对论激光等离子体电子的能量和空间分布中所起作用的研究结果。我们的三维粒子模拟研究适用于短脉冲、高强度激光脉冲，结果表明，明智地选择靶体前表面几何形状，能够切实大幅提高高能电子的产额，同时将发射限制在狭窄（<5°）的角锥范围内。
