Relativistic magnetic self-channeling of light in near-critical plasma: Three-dimensional particle-in-cell simulation
Relativistic magnetic self-channeling of light in near-critical plasma: Three-dimensional particle-in-cell simulation
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DOI：
10.1103/physrevlett.76.3975
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发表时间：
1996-05-20
影响因子：
8.6
通讯作者：
MeyerterVehn, J
中科院分区：
文献类型：
--
作者：
Pukhov, A;MeyerterVehn, J
我们提出了具有相对论强度的激光脉冲在微欠密度等离子体中传播的三维粒子细胞模拟。我们观察到与脉冲轴向运动的相对论性电子的强流。它们产生高达100毫克的磁场，强烈影响光的传播。在成丝的一个阶段后，通过磁相互作用形成一个宽度为1-2波长的单一光通道。讨论了轴上强度从最初的1.2 X 10（19）增加到2.0 X 10(20) W/cm(2)的代表性案例。还讨论了离子加速和等离子体空化。
We present 3D particle-in-cell simulations for laser pulses with relativistic intensity propagating in slightly underdense plasma. We observe strong flows of relativistic electrons, axially comoving with the pulse. They generate magnetic fields up to 100 MG and strongly influence light propagation. After a phase of filamentation, a single light channel with a width of 1-2 wavelengths is formed by magnetic interaction. A representative case is discussed in which the intensity on axis increases from initially 1.2 X 10(19) to 2.0 X 10(20) W/cm(2). Ion acceleration and plasma cavitation are also discussed.