Propagable Optical Vortices with Natural Noninteger Orbital Angular Momentum in Free Space

Xiaoyu Weng; Yu Miao; Guanxue Wang; Qiufang Zhan; Xiangmei Dong; Junle Qu; Xiumin Gao; Songlin Zhuang

doi:10.1002/adpr.202200094

Advanced Photonics Research (Jan 2023)

Propagable Optical Vortices with Natural Noninteger Orbital Angular Momentum in Free Space

Xiaoyu Weng,
Yu Miao,
Guanxue Wang,
Qiufang Zhan,
Xiangmei Dong,
Junle Qu,
Xiumin Gao,
Songlin Zhuang

Affiliations

Xiaoyu Weng: Shenzhen Key Laboratory of Photonics and Biophotonics Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
Yu Miao: Engineering Research Center of Optical Instrument and System Ministry of Education Shanghai Key Lab of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China
Guanxue Wang: Engineering Research Center of Optical Instrument and System Ministry of Education Shanghai Key Lab of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China
Qiufang Zhan: Engineering Research Center of Optical Instrument and System Ministry of Education Shanghai Key Lab of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China
Xiangmei Dong: Engineering Research Center of Optical Instrument and System Ministry of Education Shanghai Key Lab of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China
Junle Qu: Shenzhen Key Laboratory of Photonics and Biophotonics Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China
Xiumin Gao: Engineering Research Center of Optical Instrument and System Ministry of Education Shanghai Key Lab of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China
Songlin Zhuang: Engineering Research Center of Optical Instrument and System Ministry of Education Shanghai Key Lab of Modern Optical System School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology 516 Jungong Road Shanghai 200093 China

DOI: https://doi.org/10.1002/adpr.202200094
Journal volume & issue: Vol. 4, no. 1
pp. n/a – n/a

Abstract

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Light beams with optical vortices can propagate in free space only with integer orbital angular momentum. Herein, this scientific consensus theoretically and experimentally is upheaved by proposing light beams carrying natural noninteger orbital angular momentum. These peculiar vortex beams are unique solutions to the Helmholtz equation, which possesses optical vortices with topological charges of l + 0.5, where l is an integer. During propagation in free space, their amplitudes and vortex phases with noninteger topological charges can be maintained stably. The findings of this study provide an alternative state of optical vortices in physics, which can serve as basis for innovations in optics and related scientific fields.

Published in Advanced Photonics Research

ISSN: 2699-9293 (Online)
Publisher: Wiley-VCH
Country of publisher: Germany
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: https://onlinelibrary.wiley.com/journal/26999293

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