Premium
Flower‐Shaped Optical Vortex Array
Author(s) -
Fan Haihao,
Zhang Hao,
Cai Chenyuan,
Tang Miaomiao,
Li Hehe,
Tang Jie,
Li Xinzhong
Publication year - 2021
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.202000575
Subject(s) - superposition principle , optical vortex , vortex , physics , optics , interference (communication) , gaussian , phase (matter) , optical path length , phase difference , optical path , quantum mechanics , mechanics , telecommunications , channel (broadcasting) , computer science
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.