论文标题
在离子介电中的相对论电子束对体积和表面极化子的唤醒激发
Wake excitation of volume and surface polaritons by a relativistic electron bunch in an ion dielectric
论文作者
论文摘要
考虑了离子介质介质中相对论电子束激发唤醒场激发的过程。研究了激发韦克菲尔德在离子电介质波导中的时空结构。结果表明，红外（Terahertz）范围内的唤醒场由纵向极性子和Cherenkov辐射的田地组成，后者是一组电磁特征波（横向极化）的介电性波导。表面极性子的分支出现在带有轴向真空通道的介电波导中。还考虑了相对论电子束对表面极化子激发的过程。
The process of wake fields excitation by a relativistic electron bunch in ion dielectric media is considered. The space-time structure of the excited wakefield in an ion dielectric waveguide is investigated. It is shown that the wake field in the infrared (terahertz) ranges consists of the field of longitudinal polaritons and Cherenkov radiation, which is a set of electromagnetic eigen waves (transverse polaritons) of a dielectric waveguide. A branch of surface polaritons appears in a dielectric waveguide with an axial vacuum channel. The process of wakefield excitation of surface polaritons by a relativistic electron bunch is also considered.
