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首页> 外文期刊>Optics and Spectroscopy >A Contribution to the Theory of the Interaction of Transient Radiation of a Charged Particle with Periodically Modulated Anisotropic Magnetodielectric Filling of a Waveguide
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A Contribution to the Theory of the Interaction of Transient Radiation of a Charged Particle with Periodically Modulated Anisotropic Magnetodielectric Filling of a Waveguide

机译：带电荷粒子的瞬态辐射相互作用的贡献与波导的周期性调制的各向异性磁电电填充

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摘要

Transient radiation of a charged particle in a waveguide with modulated anisotropic magnetodielectric filling is considered. It is assumed that the particle moves with a constant velocity perpendicularly to the axis of the waveguide the filling of which is periodically modulated by the harmonic law. Wave equations for the transverse electric (TE) and transverse magnetic (TM) fields in the waveguide have been obtained. Analytical expressions have been obtained for fields in the waveguide in the first approximation by small modulation indices of waveguide filling. Energies of transient radiation of a charged particle have been calculated in the region of weak (nonresonance) interaction between the radiation and modulation waves, in particular, in the case of a rectangular waveguide. It has been shown that radiation energies at the zero harmonic in the region of weak interaction do not depend on the modulation indices and are proportional to the modulation indices in the first power at the plus and minus first harmonics. The mechanism of the appearance of Cherenkov radiation has been analyzed.
机译：考虑了具有调制各向异性磁电填充的波导中的带电粒子的瞬态辐射。假设颗粒在波导的轴线上垂直于波导的轴线移动，其填充由谐波法定期调制。已经获得了波导中的横向电气（TE）和横向磁性（TM）场的波浪方程。通过波导填充的小调制指标在波导中的波导中的字段已经获得了分析表达。已经在辐射和调制波之间的弱（非族节）相互作用区域中计算了带电粒子的瞬态辐射的能量，特别是在矩形波导的情况下。已经证明，弱交互区域中零谐波处的辐射能量不依赖于调制指标，并且与加号和负第一谐波的第一电源中的调制指标成比例。分析了Cherenkov辐射的出现机制。

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