Circular Airy Gaussian vortex (CAGV) beams have gained great popularity in areas of research such as optical tweezers and optical communications due to their fascinating properties, such as auto-focusing and self-healing. The propagation dynamics of these beams is dictated by their topological charge and launch angle. For example, larger topological charges and positive launch angles enhance the maximum intensity in the focal plane while simultaneously shortening the focal length of autofocusing. Crucially, while the generation of single CAGV beams has been widely reported, the simultaneous generation of multiple CAGV beams, has remained challenging. Here, we put forward a novel technique that enables the simultaneous generation of multiple CAGV beams with independent topological charges or initial launch angles from a single digital hologram encoded on a spatial light modulator (SLM). Our technique enables the independent manipulation of each CAGV beam, their topological charge and launch angle, at refresh rates limited only by the SLM (60 Hz). This technique paves the way for the simultaneous manipulation of microparticles in three dimensions and provides with an alternative way to realize optical communications with multiple spatial modes of light.

中文翻译：

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使用单个数字全息图生成圆形艾里高斯涡旋光束的任意阵列

圆形艾里高斯涡旋 (CAGV) 光束由于其迷人的特性，如自动聚焦和自我修复，在光镊和光通信等研究领域中广受欢迎。这些光束的传播动力学由它们的拓扑电荷和发射角决定。例如，较大的拓扑电荷和正发射角可增强焦平面的最大强度，同时缩短自动对焦的焦距。至关重要的是，虽然单个 CAGV 光束的生成已被广泛报道，但同时生成多个 CAGV 光束仍然具有挑战性。这里，我们提出了一种新技术，该技术能够从空间光调制器 (SLM) 上编码的单个数字全息图同时生成具有独立拓扑电荷或初始发射角的多个 CAGV 光束。我们的技术能够以仅受 SLM (60 Hz) 限制的刷新率独立操纵每个 CAGV 光束、它们的拓扑电荷和发射角度。该技术为在三个维度上同时操纵微粒铺平了道路，并提供了一种替代方法来实现具有多种空间光模式的光通信。