论文标题
Gouy和Courant-Snyder阶段的等效性
Equivalence of Gouy and Courant-Snyder phase
论文作者
论文摘要
电子涡流束的产生以及这些光束通过散光光学系统的转化为没有角动量的光束，反之亦然，在光学和电子显微镜群落中已被追捕，但在过去几十年中也在加速器群落中进行了。尽管采用了不同的概念方法，但已经取得了相似的结果。通过调整最初用于描述加速器的光学特性的Courant-Snyder理论，它显示了激光模式的描述，表明已经为带电粒子和光束开发了相同的模式转换器，并且courant-snyder相位和gouy相位相等。
The generation of electron vortex beams and the conversion of these beams into beams without angular momentum by means of astigmatic optical systems, or vice versa, has been pursued in the optical and the electron microscopy community, but also in the accelerator community in the past decades. Despite different conceptual approaches similar results have been achieved. By adapting the Courant-Snyder theory, which was originally developed for the description of optical properties of accelerators, to the description of laser modes it is shown, that identical mode converters have been developed for charged particle and for light beams, and that the Courant-Snyder phase and the Gouy phase are equivalent.
