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核聚变与等离子体物理 ›› 2008, Vol. 28 ›› Issue (3): 199-204.

• 等离子体物理学 • 上一篇    下一篇

激光等离子体通道天线的电磁散射特性分析

夏新仁,尹成友   

  1. (合肥电子工程学院,合肥 230037)
  • 收稿日期:2007-10-18 修回日期:2008-06-20 出版日期:2008-09-15 发布日期:2011-03-03
  • 作者简介:夏新仁(1976-),男,安徽当涂人,在读博士,研究方向为电磁场数值计算及激光等离子体通道天线等。
  • 基金资助:

    国家自然科学资金资助项目(60671057)

EM scattering analysis of the laser plasma channel antenna

XIA Xin-ren, YIN Cheng-you   

  1. (Hefei Electronic Engineering Institute, Hefei 230037)
  • Received:2007-10-18 Revised:2008-06-20 Online:2008-09-15 Published:2011-03-03

摘要:

激光等离子体通道天线被等效为电子在横向旋转、轴向漂移的均匀冷磁化等离子体束,且该等离子体束的横截面为沿轴向不改变的圆形。在考虑离心力、科里奥利力等惯性力的影响下,结合麦克斯韦方程和本构关系,得出了激光等离子体通道天线的散射场。为了简化,计算了一特例,发现了一些有趣的现象。

关键词: 激光, 等离子体通道, 电磁散射

Abstract:

The laser plasma channel antenna is equivalent to uniform cold magnetized plasma beam, which is assumed to be gyrating transversely and drifting longitudinally. The cross-section of the plasma beam is considered as circle and the shape is not changeable along with axis. Taking into account the influence of inertia force such as centrifugal force and Coriolis force etc, the EM scattering field of laser plasma channel antenna is derived from Maxwell equations and constitutive relations, and then an example is calculated and some interesting phenomena are discovered.

Key words: Laser, Plasma channel, EM scattering

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