提出了一种基于Pancharatnam-Berry(PB)相位调控产生混合偏振矢量光束的方法.按照光轴随空间坐标变化的规律, 用相位延迟为π的PB相位元件对PB相位进行操控, 获得局域偏振为线偏振的矢量光束, 将此矢量光束入射到四分之一波片, 产生混合偏振矢量光束.通过测定斯托克斯参数重构输出光场的偏振分布, 实验结果表明：当以θ0=0的线偏振光入射时, 输出光场包含庞加莱球上垂直于S3轴经线圆上所有偏振态的混合矢量光场; 当以θ0=π/2的线偏振光入射时, 输出光场包含庞加莱球上垂直于S1轴经线圆上所有偏振态的混合矢量光场.

A method for generating hybridly polarized vector beams by manipulating Pancharatnam-Berry (PB) phase is proposed. According to the law of optical axis varying with the spatial coordinates, a PB phase element is used to manipulate the PB phase and generate vector beams with local linear polarization. When the vector beam is incident to a quarter-wave plate, a hybridly polarized vector beam is obtained. By measuring the Stokes parameter, the polarization distribution of the output light field is reconstructed. The experimental results show that the output hybridly polarized field contains all polarization states on the longitude of Poincaré sphere perpendicular to S3 axis when input wave is linearly polarized light with polarization angle θ0=0. The output hybridly polarized field contains all polarization states on the longitude of Poincaré sphere perpendicular to S3 axis when input wave is linearly polarized light with polarization angle θ0=0. When the polarization angle θ0=π/2, the output hybridly polarized field includes all polarization states on the longitude of Poincaré sphere perpendicular to S1 axis.