论文标题
扭曲的血浆波由扭曲的浮子力驱动
Twisted plasma waves driven by twisted ponderomotive force
论文作者
论文摘要
我们介绍了由扭曲的浮子力驱动的扭曲等离子体波的结果。通过击败两个，共同传播的拉格雷 - 高斯（LG）轨道角动量（OAM）激光脉冲具有不同的频率，也可以不同，我们也可以得到扭曲的浮子力。三维粒子中的模拟用于证明由激光驱动的扭曲等离子体波。扭曲的血浆波具有带有螺旋旋转结构的电子密度扰动。与线性流体理论的预测不同，模拟结果显示非线性旋转电流和静态轴向磁场。与旋转电流一起是扭曲等离子体波中颗粒携带的轴向oAM。也给出了扭曲等离子体波的详细理论分析。
We present results of twisted plasma waves driven by twisted ponderomotive force. With beating of two, co-propagating, Laguerre-Gaussian (LG) orbital angular momentum (OAM) laser pulses with different frequencies and also different twist indices, we can get twisted ponderomotive force. Three-dimensional particle-in-cell simulations are used to demonstrate the twisted plasma waves driven by lasers. The twisted plasma waves have an electron density perturbation with a helical rotating structure. Different from the predictions of the linear fluid theory, the simulation results show a nonlinear rotating current and a static axial magnetic field. Along with the rotating current is the axial OAM carried by particles in the twisted plasma waves. Detailed theoretical analysis of twisted plasma waves is given too.
