Volume 533, Issue 4 2000575
Original Paper

Flower-Shaped Optical Vortex Array

Haihao Fan

Haihao Fan

School of Physics and Engineering, Henan University of Science and Technology, Luoyang, 471023 China

State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, 710119 China

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Hao Zhang

Hao Zhang

School of Physics and Engineering, Henan University of Science and Technology, Luoyang, 471023 China

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Chenyuan Cai

Chenyuan Cai

Luoyang First Senior High School, Luoyang, 471023 China

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Miaomiao Tang

Miaomiao Tang

School of Physics and Engineering, Henan University of Science and Technology, Luoyang, 471023 China

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Hehe Li

Hehe Li

School of Physics and Engineering, Henan University of Science and Technology, Luoyang, 471023 China

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Jie Tang

Jie Tang

State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, 710119 China

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Xinzhong Li

Corresponding Author

Xinzhong Li

School of Physics and Engineering, Henan University of Science and Technology, Luoyang, 471023 China

State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, 710119 China

E-mail: [email protected]

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First published: 20 January 2021
Citations: 15

Abstract

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.

Conflict of Interest

The authors declare no conflict of interest.

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