Cylindrical vector vortex (CVV) beams are topical forms of structured light, and have been studied extensively as single beams, non-separable in two degrees of freedom: spatial mode and polarisation. Here we create arrays of CVV beams using a combination of dynamic phase controlled Dammann gratings and spin–orbit coupling through azimuthally varying geometric phase. We demonstrate control over the number, geometry and vectorness of the CVV arrays by simple adjustment of waveplates and computer generated holograms. To quantify the efficacy of our approach, we employ a recently proposed vector quality factor analysis, realising high quality vector beam arrays with purities in excess of 95%. Our approach is scalable in array size, robust (no interferometric beam combination) and allows for the on-demand creation of arbitrary vector beam arrays, crucial for applications that require multi-spot arrays, for example, in fast laser materials processing, multi-channel communication with ...

中文翻译：

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通过全息和几何相位控制的高质量矢量涡流阵列

圆柱矢量涡旋（CVV）光束是结构光的局部形式，已被广泛研究为单光束，在两个自由度上不可分离：空间模式和偏振。在这里，我们使用动态相位控制的达曼光栅和通过方位角变化的几何相位的自旋轨道耦合的组合来创建CVV光束阵列。我们演示了通过简单调整波片和计算机生成的全息图，可以控制CVV阵列的数量，几何形状和向量。为了量化我们方法的有效性，我们采用了最近提出的矢量质量因子分析，实现了纯度超过95％的高质量矢量光束阵列。我们的方法可扩展阵列大小，坚固（无干涉光束组合），并允许按需创建任意矢量光束阵列，