论文标题
两个碰撞激光束的旋转含义对超偏移电子的辐射的影响
Influence of the rotational sense of two colliding laser beams on the radiation of an ultrarelativistic electron
论文作者
论文摘要
通过分析处理，考虑了两个反向循环极化的强激光束在具有共旋转或反向旋转方向的两个反向传播圆极化的强激光束中的经典动力学。假设粒子能是设置中的主要尺度，则得出了近似的解，并且分析了旋转感对动力学的影响。对于激光束共旋转或反向旋转，可以发现电子能量和动量的定性差异，并通过经典运动方程的精确数值解确认。尽管电子轨迹存在这些差异，但电子的辐射光谱并未彼此差异，以换取具有不同激光束旋转方向的构型。在这里，在Baier-Katkov半古典近似的框架中给出了与反向传播激光束相互作用的超媒体电子的辐射。考虑了几种参数制度，并且两种情况下产生的光谱都具有相同的形状，并且数量上只有几个百分比。
With analytical treatment, the classical dynamics of an ultrarelativistic electron in two counter-propagating circularly polarized strong laser beams with either co-rotating or counter-rotating direction are considered. Assuming that the particle energy is the dominant scale in the setup, an approximate solution is derived and the influence of the rotational sense on the dynamics is analyzed. Qualitative differences in both electron energy and momentum are found for the laser beams being co-rotating or counter-rotating and are confirmed by the exact numerical solution of the classical equation of motion. Despite of these differences in the electron trajectory, the radiation spectra of the electron do not deviate qualitatively from each other for configurations with varying rotational directions of the laser beams. Here, the radiation of an ultrarelativistic electron interacting with counterpropagating laser beams is given in the framework of the Baier-Katkov semi-classical approximation. Several parameter regimes are considered and the spectra resulting from the two scenarios all have the same shape and only differ quantitatively by a few percent.
