Spatially structured light field has attracted great attention due to its novel properties and application potential in numerous fields. Among them, the most striking one is the polarization-structured light, known as the vector beam. Here, using a periodic polarization-structured light, we propose a method to dynamically measure the holo-information of light fields, including the amplitude, phase, and polarization distributions, in three-dimensional (3D) space. The measurement system is composed of a Mach-Zender interferometer involving a liquid crystal polarized grating in the reference arm, which is simple, stable, and easy to operate. Featuring the single-shot measurement, this method supports observing the dynamic variation of object light fields. The accuracy, 3D polarimetry, and dynamic observation of this method are validated by measuring a calibrated quarter-wave plate, a vector vortex beam, a Poincaré beam, and a stressed polymethyl methacrylate sample.

空间结构的光场由于其新颖的特性和在众多领域中的应用潜力而备受关注。其中，最引人注目的一种是偏振结构光，即矢量光束。在这里，我们使用周期性偏振结构的光，提出了一种在三维（3D）空间中动态测量光场的完整信息（包括幅度，相位和偏振分布）的方法。该测量系统由马赫曾德干涉仪组成，该干涉仪在参考臂中包括液晶偏振光栅，该干涉仪简单，稳定且易于操作。该方法具有单次测量功能，支持观察物体光场的动态变化。精度，3D旋光仪，