Analogous to the behavior of a common converging lens for the input of tilted waves, a recent publication suggests a new optical element with an azimuthal-quadratic phase profile for the focusing of orbital angular momentum beams at distinct angular positions. Its realization in a metasurface form enables the combined measurement of orbital and spin angular momentum using a single optical component.

中文翻译：

---

受到OAM启发的新型光学器件：角金属

与用于入射斜波的普通会聚透镜的行为类似，最近的出版物提出了一种具有方位角-二次相轮廓的新型光学元件，用于将轨道角动量光束聚焦在不同的角度位置。它以超表面形式实现，可以使用单个光学组件对轨道动量和自旋角动量进行组合测量。