Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence

The precondition for the application of light beams is the ability to devise light distribution with high precision. Controlling more dimensions for structured light fields is an effective method to improve the ability to devise light distribution. The Swallowtail beam, due to its rich regulatory pa...

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Published in:New Journal of Physics
Main Authors: Jingyi Shi, Zehong Liang, You Wu, Quanfeng Wei, Lingling Shui, Dongmei Deng
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/ace7ed
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author Jingyi Shi
Zehong Liang
You Wu
Quanfeng Wei
Lingling Shui
Dongmei Deng
author_facet Jingyi Shi
Zehong Liang
You Wu
Quanfeng Wei
Lingling Shui
Dongmei Deng
author_sort Jingyi Shi
collection DOAJ
container_title New Journal of Physics
description The precondition for the application of light beams is the ability to devise light distribution with high precision. Controlling more dimensions for structured light fields is an effective method to improve the ability to devise light distribution. The Swallowtail beam, due to its rich regulatory parameters, provides the possibility to design a light field with a specific intensity distribution. Utilizing the Swallowtail beam as a foundation, we design its initial phase, polarization, and coherent structure, and propose a partially coherent azimuthally polarized circular vortex Swallowtail Gaussian beam (PCAPCVSGB) in our paper. This beam exhibits an abnormal self-focusing ability and forms an easily adjustable optical potential well at the focal plane, providing another effective tool for achieving optical manipulation. In addition, the PCAPCVSGB also shows an interesting vector property. It possesses a stable polarization singularity even with changes in coherence and topological charges, which exhibits a potential application value in optical communication.
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spelling doaj-art-1dec030d7a1c4ca3a7188fffdbe0467b2025-08-19T20:33:07ZengIOP PublishingNew Journal of Physics1367-26302023-01-0125808300710.1088/1367-2630/ace7edAbnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherenceJingyi Shi0https://orcid.org/0000-0003-3534-8771Zehong Liang1You Wu2https://orcid.org/0000-0002-3343-8987Quanfeng Wei3Lingling Shui4https://orcid.org/0000-0001-5976-1355Dongmei Deng5Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University , Guangzhou 510631, People’s Republic of China; School of Information and Optoelectronic Science and Engineering, South China Normal University , Guangzhou 510006, People’s Republic of ChinaProvincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University , Guangzhou 510631, People’s Republic of China; School of Information and Optoelectronic Science and Engineering, South China Normal University , Guangzhou 510006, People’s Republic of ChinaProvincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University , Guangzhou 510631, People’s Republic of China; School of Information and Optoelectronic Science and Engineering, South China Normal University , Guangzhou 510006, People’s Republic of ChinaProvincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University , Guangzhou 510631, People’s Republic of China; School of Information and Optoelectronic Science and Engineering, South China Normal University , Guangzhou 510006, People’s Republic of ChinaProvincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University , Guangzhou 510631, People’s Republic of China; School of Information and Optoelectronic Science and Engineering, South China Normal University , Guangzhou 510006, People’s Republic of ChinaProvincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University , Guangzhou 510631, People’s Republic of China; School of Information and Optoelectronic Science and Engineering, South China Normal University , Guangzhou 510006, People’s Republic of ChinaThe precondition for the application of light beams is the ability to devise light distribution with high precision. Controlling more dimensions for structured light fields is an effective method to improve the ability to devise light distribution. The Swallowtail beam, due to its rich regulatory parameters, provides the possibility to design a light field with a specific intensity distribution. Utilizing the Swallowtail beam as a foundation, we design its initial phase, polarization, and coherent structure, and propose a partially coherent azimuthally polarized circular vortex Swallowtail Gaussian beam (PCAPCVSGB) in our paper. This beam exhibits an abnormal self-focusing ability and forms an easily adjustable optical potential well at the focal plane, providing another effective tool for achieving optical manipulation. In addition, the PCAPCVSGB also shows an interesting vector property. It possesses a stable polarization singularity even with changes in coherence and topological charges, which exhibits a potential application value in optical communication.https://doi.org/10.1088/1367-2630/ace7edautofocusingpartially coherent beamvortex beam.
spellingShingle Jingyi Shi
Zehong Liang
You Wu
Quanfeng Wei
Lingling Shui
Dongmei Deng
Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence
autofocusing
partially coherent beam
vortex beam.
title Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence
title_full Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence
title_fullStr Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence
title_full_unstemmed Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence
title_short Abnormally autofocusing vortex Swallowtail Gaussian vector beam with low spatial coherence
title_sort abnormally autofocusing vortex swallowtail gaussian vector beam with low spatial coherence
topic autofocusing
partially coherent beam
vortex beam.
url https://doi.org/10.1088/1367-2630/ace7ed
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