We examine the electron acceleration induced by an ultra-relativistic intensity laser–plasma interaction in a two-dimensional plasma channel in the presence of a self-generated transverse magnetic field. We find that the electron dynamics is strongly affected by the laser pulse polarization angle, plasma density, and magnetic field strength. We investigate in detail, the dependencies of the electron acceleration in terms of different parameters and find excellent agreement with non-magnetized plasma in the absence of the magnetic field. The numerical results show that the self-generated magnetic field plays a constructive role in the electron acceleration process. It is shown that electron acceleration is more affected by self-generated magnetic field for the laser radiations with large polarization angles. The numerical results show the maximum enhancement for electron acceleration for a laser radiation with polarization angle θ = π/2.

中文翻译：

---

在二维磁化等离子体通道中使用线偏振激光束进行直接电子加速

我们研究了在存在自生横向磁场的情况下，在二维等离子体通道中由超相对论强度激光-等离子体相互作用引起的电子加速。我们发现电子动力学受激光脉冲偏振角、等离子体密度和磁场强度的强烈影响。我们详细研究了电子加速度对不同参数的依赖性，并发现在没有磁场的情况下与非磁化等离子体非常吻合。数值结果表明，自生磁场在电子加速过程中起建设性作用。结果表明，对于大偏振角的激光辐射，电子加速受自生磁场的影响更大。