Generally, an optical vortex lattice (OVL) is generated via the superposition of two specific vortex beams. Thus far, OVL has been successfully employed to trap atoms via the dark cores. The topological charge (TC) on each optical vortex (OV) in the lattice is only ±1. Consequently, the orbital angular momentum (OAM) on the lattice is ignored. To expand the potential applications, it is necessary to rediscover and exploit OAM. Here we propose a novel high-order OVL (HO-OVL) that combines the phase multiplication and the arbitrary mode-controllable techniques. TC on each OV in the lattice is up to 51, which generates sufficient OAM to manipulate microparticles. Thereafter, the entire lattice can be modulated to desirable arbitrary modes. Finally, yeast cells are trapped and rotated by the proposed HO-OVL. To the best of our knowledge, this is the first realization of the complex motion of microparticles via OVL. Thus, this work successfully exploits OAM on OVL, thereby revealing potential applications in particle manipulation and optical tweezers.

中文翻译：

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光学涡旋晶格：轨道角动量的开发

通常，光学涡旋晶格 (OVL) 是通过两个特定涡旋光束的叠加生成的。迄今为止，OVL 已成功用于通过暗核捕获原子。晶格中每个光学涡旋 (OV) 上的拓扑电荷 (TC) 仅为 ±1。因此，晶格上的轨道角动量 (OAM) 被忽略。为了扩展潜在的应用，需要重新发现和利用OAM。在这里，我们提出了一种新颖的高阶 OVL（HO-OVL），它结合了相位乘法和任意模式可控技术。晶格中每个 OV 上的 TC 高达 51，这会产生足够的 OAM 来操纵微粒。此后，可以将整个晶格调制为所需的任意模式。最后，酵母细胞被提议的 HO-OVL 捕获和旋转。据我们所知，这是通过 OVL 首次实现微粒的复杂运动。因此，这项工作成功地在 OVL 上利用了 OAM，从而揭示了在粒子操纵和光镊中的潜在应用。