论文标题
产生超快电子束火车，通过捕获多个等离子体韦克菲尔德
Generation of ultrafast electron bunch trains via trapping into multiple periods of plasma wakefields
论文作者
论文摘要
我们展示了一种新颖的方法，可以通过激光驱动的韦克菲尔德加速器来产生飞秒电子束火车。我们使用两种独立的高强度激光脉冲，一个驱动器和喷油器，每种都会产生自己的等离子体唤醒。激光脉冲及其唤醒的相互作用导致通过多种机制定期注射驱动等离子体中的游离电子，包括雨珠剂漂移，唤醒唤醒干扰和通过强激光场直接对电子的加速性。电子列车是产生的，最多4个准单调式束，每束时都在等离子体周期内分离。生成的列车的时间曲线是通过对梁载荷的分析得出的，并使用2D粒子中的模拟确认。
We demonstrate a novel approach to the generation of femtosecond electron bunch trains via laser-driven wakefield acceleration. We use two independent high-intensity laser pulses, a drive, and injector, each creating their own plasma wakes. The interaction of the laser pulses and their wakes results in a periodic injection of free electrons in the drive plasma wake via several mechanisms, including ponderomotive drift, wake-wake interference, and pre-acceleration of electrons directly by strong laser fields. Electron trains were generated with up to 4 quasi-monoenergetic bunches, each separated in time by a plasma period. The time profile of the generated trains is deduced from an analysis of beam loading and confirmed using 2D Particle-in-Cell simulations.
