矢量涡旋光束是一种新型的结构光束,具有横截面各向异性分布的偏振态,同时携带有轨道角动量。矢量涡旋光束的这些独特性质使得其在光通信、光镊、激光加工等领域具有重要的应用价值。对于不同的应用,所需的矢量涡旋光束的偏振态、相位分布不同,因此偏振、相位模式连续可调的矢量涡旋光束的生成系统是矢量涡旋光束应用的重要基础。报道了本课题组在矢量涡旋光束生成方面的工作,主要介绍了腔外模式连续可调的矢量涡旋光束的生成方法,以及矢量涡旋光束阵列的生成方法。

Vectorial vortex beams are a new kind of structure beams, with anisotropic polarization distributions and carrying orbital angular momentum. Such unique features contribute to their applications in lots of domains as optical communications, optical tweezers, laser material processing, etc. Different applications need different polarization and phase distributions. So generating vectorial vortex beams with continuously adjustable polarization and phase distributions is of great importance. In this paper, we introduce some approaches for generating vectorial vortex beams developed in our group, including generation of single vectorial vortex beams outside the cavity and generation of vectorial vortex beams arrays.