Open AccessTwin curvilinear vortex beams
Author(s) -
Zhuang Wang,
Zheng Yan,
Yuan Gao,
Wenxiang Yan,
Chunjuan Liang,
ZhiCheng Ren,
Xiaohao Wang,
Jianping Ding,
HuiTian Wang
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.423803
Subject(s) - optical vortex , curvilinear coordinates , optics , physics , vortex , topological quantum number , optical tweezers , refractive index , light beam , diffraction , beam (structure) , fourier transform , ptychography , mechanics , quantum mechanics
We report on a novel curvilinear optical vortex beam named twin curvilinear vortex beams (TCVBs) with intensity and phase distribution along a pair of two- or three-dimensional curves, both of which share the same shape and the same topological charge. The TCVBs also possess the character of perfect optical vortex, namely having a size independent of topological charge. We theoretically demonstrate that a TCVB rather than a single-curve vortex beam can be created by the Fourier transform of a cylindrically polarized beam. The behavior of TCVBs generated through our method is investigated by simulation and experiment, including interference experiments for identifying the vortex property of the TCVBs. The TCVBs may find applications in optical tweezers, such as trapping low refractive index particles in the dark region between two curves and driving them moving along the curvilinear trajectory.