Driven by system integration and device miniaturization, a single device with multiple functions is desirable. In article number 1900182, Xianzhong Chen, Yiming Zhu, and co‐workers demonstrate a metalens that can focus the incident THz waves into two focal spots with predesigned polarization rotation. This approach not only provides a platform for multiplexing of focusing and polarization rotation, but also opens a novel avenue for polarization‐dependent imaging.

中文翻译：

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多焦点金属感：具有极化旋转焦点的多焦点金属感

在系统集成和设备小型化的驱动下，具有多个功能的单个设备是理想的。在第1900182号文章中，陈现忠，朱一鸣和他的同事们演示了一种金属元素，它们可以利用预先设计的偏振旋转将入射的太赫兹波聚焦成两个焦点。这种方法不仅提供了聚焦和偏振旋转复用的平台，而且为偏振相关成像开辟了一条新途径。