Cheng C C, Wright E M, Moloney J V
Arizona Center for Mathematical Sciences, and Optical Sciences Center, Tucson, Arizona 85721, USA.
Phys Rev Lett. 2001 Nov 19;87(21):213001. doi: 10.1103/PhysRevLett.87.213001. Epub 2001 Nov 1.
We present a model that elucidates the physics underlying the generation of an electromagnetic pulse from a femtosecond laser induced plasma channel. The radiation pressure force from the laser pulse spatially separates the ionized electrons from the heavier ions and the induced dipole moment subsequently oscillates at the plasma frequency and radiates an electromagnetic pulse.
我们提出了一个模型,该模型阐明了从飞秒激光诱导的等离子体通道产生电磁脉冲背后的物理原理。激光脉冲产生的辐射压力使电离电子与较重的离子在空间上分离,随后感应偶极矩以等离子体频率振荡并辐射出电磁脉冲。