Abstract

The process of focusing circularly polarized laser beams by plane diffractive lenses using the Richards-Wolfe formula is considered. It is established that in the focal plane of a light field with circular polarization circles of different radii with the center on the optical axis are formed. In these circular regions polarization vectors are twisted in opposite directions. The appearance of “spin” separation depending on the radius can be explained by the phenomenon of radial spin Hall effect in the focal plane.

中文翻译：

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圆偏振光束的霍尔效应

摘要

考虑使用理查兹-沃尔夫公式通过平面衍射透镜聚焦圆偏振激光束的过程。确定在光场的焦平面上形成以光轴为中心的不同半径的圆偏振圆。在这些圆形区域中，偏振矢量沿相反方向扭曲。取决于半径的“自旋”分离的出现可以通过焦平面中的径向自旋霍尔效应现象来解释。