【摘要】 分析了等离子体中传播的圆偏振激光脉冲对注入电子(沿任意方向注入)的加速。导出了电子获得加速所需的激光强度阈值及相应的电子能量增益的一般解析表达式。该强度阈值对电子的初始横向动量十分敏感,为了获得较低的阈值,应尽可能使电子的初始运动方向沿激光脉冲的传播方向。更多还原

【Abstract】 The acceleration of electrons by a laser pulse for the case in which the electrons are injected along an arbitrary direction is studied. The general formulae which represent the critical intensity of the laser pulse for the acceleration and the corresponding energy gain of the particles are derived. The critical intensity is sensitive to the initial transverse momentum of the particle. In order to obtain low critical intensity, one should try to make the particle and the pulse propagate along the same direction initially.更多还原