Polarization measurement has found applications in many fields ranging from quantum science to our daily life. However, traditional polarization measurement systems suffer from large volume and high cost. To keep pace with the continued device miniaturization and system integration, new detection approaches and devices are desirable. The marriage between optical metasurfaces and superposition of optical vortex beams has offered a new idea method for polarization detection. We propose and experimentally demonstrate a single metasurface for polarization measurement based on the superposition of optical vortex beams. The relationship between the three parameters of the polarization state and the interference pattern of vortex beams is deduced theoretically. The major axis, ellipticity and handedness of a polarization state are determined by analyzing the intensity patterns of the superimposed vortex beams. Our method has provided a new approach for the development of compact optical devices for polarization measurement.

中文翻译：

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用于偏振测量的光学涡旋光束的叠加

偏振测量在从量子科学到我们日常生活的许多领域都有应用。然而，传统的偏振测量系统体积大、成本高。为了跟上持续的设备小型化和系统集成的步伐，需要新的检测方法和设备。光学超表面与光学涡旋光束叠加之间的结合为偏振检测提供了一种新的思路方法。我们提出并实验证明了基于光学涡旋光束叠加的用于偏振测量的单个超表面。从理论上推导出偏振态三个参数与涡旋光束干涉图的关系。主轴，偏振态的椭圆度和旋向性是通过分析叠加涡旋光束的强度模式来确定的。我们的方法为开发用于偏振测量的紧凑型光学设备提供了一种新方法。