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Electromagnetic complex source pulsed beam fields

机译:电磁复源脉冲束场

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Vector electromagnetic pulsed beam fields are constructed by using current dipoles located at complex coordinate points. As in the scalar case, the direction, collimation, and directivity of the field are determined essentially by the imaginary displacement of the source coordinate. The vector fields also depend on the polarization of the dipole with respect to the beam axis. The properties of the field for two special cases in which the dipole is directed either along or transverse to the beam axis are examined analytically and numerically. The general polarization case is thereby considered as a superposition of these two special cases. As expected, the strongest radiation is achieved when the dipole is directed transverse to the beam axis.
机译:通过使用位于复坐标点的电流偶极子来构造矢量电磁脉冲束场。与标量情况一样,场的方向,准直度和方向性基本上由源坐标的假想位移确定。矢量场还取决于偶极子相对于波束轴的极化。对于偶极子沿射束轴线或垂直于射束轴线定向的两种特殊情况,其场的特性进行了分析和数值分析。因此,一般的极化情况被认为是这两种特殊情况的叠加。不出所料,当偶极子垂直于光束轴指向时,可获得最强的辐射。

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