Electron self-injection and acceleration driven by a tightly focused intense laser beam in an underdense plasma
Electron self-injection and acceleration driven by a tightly focused intense laser beam in an underdense plasma
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DOI：
10.1063/1.1827625
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发表时间：
2005
影响因子：
2.2
通讯作者：
H. Xu;Wei Yu;P. Lu;V. Senecha;F. He;B. Shen;L. Qian;Ruxin Li;Zhi‐zhan Xu
中科院分区：
文献类型：
--
作者：
H. Xu;Wei Yu;P. Lu;V. Senecha;F. He;B. Shen;L. Qian;Ruxin Li;Zhi‐zhan Xu
提出了一种用于激光尾流场加速的电子自注入方案。在该方案中，尾流场的横波破碎和激光束的紧密聚焦几何形状起着重要的作用。当紧聚焦的激光束在低密度等离子体中传播时，大量的背景电子自注入到尾流场的加速阶段。使用2D3V代码进行的粒子池模拟显示，产生的准直电子束总数为1.4 x 109，能量高达8 MeV。(C) 2005美国物理研究所。
A scheme for electron self-injection in the laser wakefield acceleration is proposed. In this scheme, the transverse wave breaking of the wakefield and the tightly focused geometry of the laser beam play important roles. A large number of the background electrons are self-injected into the acceleration phase of the wakefield during the defocusing of the tightly focused laser beam as it propagates through an underdense plasma. Particle-in-cell simulations performed using a 2D3V code have shown generation of a collimated electron bunch with a total number of 1.4 x 109 and energies up to 8 MeV. (C) 2005 American Institute of Physics.