Soliton synchrotron afterglow in a laser plasma.
Soliton synchrotron afterglow in a laser plasma.
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DOI：
10.1103/physrevlett.92.255001
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发表时间：
2004-06
影响因子：
8.6
通讯作者：
T. Esirkepov;S. V. Bulanov;K. Nishihara;T. Tajima
中科院分区：
文献类型：
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作者：
T. Esirkepov;S. V. Bulanov;K. Nishihara;T. Tajima
低温无碰撞等离子体中的相对论电磁子周期孤子可以产生相干同步辐射。利用三维粒子模拟方法，我们发现，在相对论性强的短圆偏振激光脉冲作用下，等离子体中的孤立子在腔壁电荷密度振荡的作用下，会发射出螺旋电磁波。这种高频余辉持续数十个朗缪尔周期。
Coherent synchrotron radiation can be emitted by relativistic electromagnetic subcycle solitons dwelling in a low-temperature collisionless plasma. Using three-dimensional particle-in-cell simulations we show that solitons, left in a wake of a relativistically intense short circularly polarized laser pulse in the plasma, emit spiral electromagnetic wave, as a result of charge density oscillations in the wall of the soliton cavity. This high-frequency afterglow persists for tens of Langmuir periods.