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为了研究在激光驱动的尾场中被加速电子的动能,采用粒子模拟方法,得到了决定电子最大动能的尾场势的最大值和最小值,讨论了等离子体尾波静电势的最大值和最小值及其与激光脉冲长度和强度之间的关系。结果表明,捕获电子最大能量与脉冲激光强度成正比,激光脉冲长度是激光波长的10倍时电子获得的能量最大。
In order to study the kinetic energy of accelerated electrons in a laser-driven wakefield, the maximum and minimum values of the wakefields that determine the maximum kinetic energy of electrons are obtained by particle simulation. The maximum and minimum of the electrostatic potential Value and its relationship with laser pulse length and intensity. The results show that the maximum energy of the captured electrons is proportional to the intensity of the pulsed laser and the energy obtained by the electrons is the largest when the laser pulse length is 10 times the wavelength of the laser.