Configuring Polarization Singularity Array Composed of C-Point Pairs

The generation and topological configuration of double-layered polarization singularity array (PSA) having paired C-points of opposite topological index through superposing three Laguerre-Gaussian (LG) component beams with orthogonal linear polarization states are demonstrated. The generated PSA bea...

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Bibliographic Details
Published in:IEEE photonics journal 2022-08, Vol.14 (4), p.1-6
Main Authors: Wang, Xinglin, Li, Zhiyi, Gao, Yuan, Yuan, Zheng, Yan, Wenxiang, Ren, Zhi-Cheng, Wang, Xi-Lin, Ding, Jianping, Wang, Hui-Tian
Format: Article
Language:English
Subjects:
Arrays
Color
Gaussian beams (optics)
Geometry
Helicity
Indexes
Linear polarization
Mathematical morphology
Morphology
orbital angular momentum
Phase modulation
Point pairs
Polarization
polarization singularity
Singular optics
Singularities
Solids
Spatial light modulators
stokes vortices
Topology
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Summary:The generation and topological configuration of double-layered polarization singularity array (PSA) having paired C-points of opposite topological index through superposing three Laguerre-Gaussian (LG) component beams with orthogonal linear polarization states are demonstrated. The generated PSA beam exhibits diversity in topological geometry and intensity pattern. The topological rule that the zero net topological charge and helicity conservation hold for the entire PSA is also confirmed. Based on our experiment setup consisting of a computer-controlled spatial light modulator (SLM), the PSA morphology can be flexibly customized and dynamically regulated by modulating the parameters of constituent beams. Our scheme provides a convenient device for manipulating polarization singularities and can facilitate the potential applications of singular optics.
ISSN:1943-0655
1943-0655
1943-0647
DOI:10.1109/JPHOT.2022.3182166