Herein, the generation of an optical vortex array dubbed the flower‐shaped optical vortex array (FOVA) is proposed and experimentally demonstrated using a single optical path interference method. FOVA is generated by the superposition of even and odd Ince–Gaussian (IG) beams, which have the same degree m and different order p. The number of optical vortices (OVs) in the FOVA is determined based on the values of order p and degree m of the even and odd IG beams. Furthermore, the positive sign of the OVs in the array can be transformed to negative by adding a specific initial phase difference. The OVs vanish and then recover as the initial phase difference increases from 0 to 2π. Moreover, the gradient force and energy flow distribution of the FOVA are studied. The OVA with flower‐shaped structure generated herein has potential significance in applications, such as microparticle manipulation and optical measurements.

中文翻译：

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花形光学涡旋阵列

在此，提出了一种被称为花形光涡旋阵列（FOVA）的光涡旋阵列的生成方法，并使用单光路干涉法进行了实验验证。FOVA是由偶数和奇数Ince-Gaussian（IG）光束的叠加生成的，它们具有相同的度数m和不同的阶数p。FOVA中的光学涡旋（OVs）数量基于p阶和m阶的值确定偶数和奇数IG光束。此外，通过添加特定的初始相位差，可以将阵列中OV的正号转换为负号。OV消失，然后随着初始相位差从0增大到2π而恢复。此外，还研究了FOVA的梯度力和能量流分布。本文生成的具有花状结构的OVA在微粒操纵和光学测量等应用中具有潜在的意义。