论文标题
韦克菲尔德激发离子电介质中的短激光脉冲
Wakefield excitation by a short laser pulse in ion dielectrics
论文作者
论文摘要
研究了离子电介质中激光脉冲激发电磁辐射的激发过程。在各向同性离子介电介质中的非线性电化层，并因此确定了激光脉冲的硫化力诱导的极化电荷和电流。获得了红外和微波频率范围中激发的韦克场的频谱。并研究了离子介电波导中韦克菲尔德的时空结构。结果表明，激发场由一个潜在的极化电场以及一组离子电介质波导的特征电磁波组成。
The process of excitation of Cherenkov electromagnetic radiation by a laser pulse in ion dielectrics is investigated. Nonlinear electric polarization in isotropic ion dielectric medium and, accordingly, polarization charges and currents induced by a ponderomotive force of a laser pulse are determined. Frequency spectra of the excited wakefields in the infrared and microwave frequency ranges are obtained. The spatiotemporal structure of the wakefield in ion dielectric waveguide is obtained and studied. It is shown that the excited field consists of a potential polarization electric field, as well as a set of eigen electromagnetic waves of ion dielectric waveguide.
