Dou Jiazhen, Xi Teli, Ma Chaojie, Di Jianglei, Zhao Jianlin
Opt Express. 2019 Mar 18;27(6):7968-7978. doi: 10.1364/OE.27.007968.
We propose a method for measuring the full polarization states of a light field by using hybrid polarization-angular multiplexing digital holography based on geometric phase. Through acquiring the geometric phase distribution of the whole light field by only recording a composite hologram, and according to quantitative relationship between the geometric phase and polarization state, the Stokes parameters of a light field can be calculated. Compared with other methods, this method can be used to obtain the complex amplitude information of the light field simultaneously without requiring other complex devices or elements to be adjusted, thus enabling dynamic polarization state measurement. The measurement results of the light fields generated by standard polarized optical elements, vortex half-wave retarder, and liquid crystal depolarizer verified this method's feasibility and validity.
我们提出了一种基于几何相位的混合偏振-角度复用数字全息术来测量光场全偏振态的方法。通过仅记录一张复合全息图来获取整个光场的几何相位分布，并根据几何相位与偏振态之间的定量关系，可计算出光场的斯托克斯参数。与其他方法相比，该方法无需调整其他复杂器件或元件即可同时获取光场的复振幅信息，从而实现动态偏振态测量。由标准偏振光学元件、涡旋半波片和液晶退偏器产生的光场的测量结果验证了该方法的可行性和有效性。
