Spatial structure and angular momentum of electro-magnetic wave radiated from a relativistic electron moving on a spiral orbit
Spatial structure and angular momentum of electro-magnetic wave radiated from a relativistic electron moving on a spiral orbit
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DOI：
10.15748/jasse.8.87
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发表时间：
2021
影响因子：
0.5
通讯作者：
E. Salehi;M. Katoh
中科院分区：
文献类型：
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作者：
E. Salehi;M. Katoh
.在相对论电子沿螺旋轨道运动的速度远大于垂直于轴线的速度的近似下，导出了相对论电子沿螺旋轨道运动时辐射电磁波矢势的解析表达式。在此基础上，我们证明了电磁波具有螺旋波阵面并带有角动量。
. We derive analytic expressions for the vector potential of electromagnetic wave radiated from a relativistic electron moving on a spiral orbit under an approximation that the velocity along the spiral orbit is much larger than that perpendicular to the axis. Based on this expression, we show that the electromagnetic wave has a spiral wave front and carries angular momentum.