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Analysis of saturation phenomena in Cerenkov free-electron lasers with a planar waveguide

机译:带有平面波导的切伦科夫自由电子激光器的饱和现象分析

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摘要

In this paper, the operation of the stimulated emission in Cerenkov free-electron laser (CFEL) is studied on the basis of the modulations of electron velocity and density by the electromagnetic (EM) field. The influence of the electron relaxation, due to mutual electrons collisions, on the electron dynamics is taken into account. We investigate the growth characteristics of Cerenkov laser operating in the small-signal and saturation regimes. In the saturation regime, the effect of velocity reduction of the electron beam on the gain dynamics is demonstrated. We also show that our results match with those of other well-known treatments in the small-signal gain limit.
机译:在本文中,基于电子(EM)场对电子速度和密度的调制,研究了切伦科夫自由电子激光器(CFEL)中受激发射的操作。考虑了由于电子相互碰撞而引起的电子弛豫对电子动力学的影响。我们研究了切伦科夫激光器在小信号和饱和状态下的生长特性。在饱和状态下,证明了电子束速度降低对增益动力学的影响。我们还表明,在小信号增益限制中,我们的结果与其他知名疗法的结果相匹配。

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