Structural stability of open vortex beams
Structural stability of open vortex beams
Normally, intensity patterns of vortex beams are closed rings such as Laguerre–Gaussian beams and Bessel–Gaussian beams. Recent studies showed that the vortex beams with open ring structures, namely, open vortex beams (OVBs), have non-trivial orbital angular momentum (OAM) spectra and optical forces and can be employed in many applications such as metrology and quantum information. However, the structural stability of OVBs, including the topological charge conservation and the intensity invariance, has not been studied yet. Here, we theoretically propose a generalized model of OVBs, using both geometrical ray-like trajectories and coherent wave-packets, and the structural stability of OVBs is validated by the geometrical envelope of ray bundles. Moreover, we experimentally demonstrated that such OVBs can be generated by a partial fork-grating (PFG). Our study reveals structural characteristics of OVBs, which lays a foundation for the OVB's potential applications in optical manipulation, optical metrology, etc.
Zeng, Ruoyu
2cb815f9-8625-4077-8bae-fa140fefda3e
Zhao, Qi
8713d742-7b93-46cc-8457-9140e049c47a
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Liu, Yidong
0e2e075c-8025-4d88-8d2a-df02df22664d
Yang, Yuanjie
32f56f97-ebc4-48f9-8b06-cd75cd6872d0
25 October 2021
Zeng, Ruoyu
2cb815f9-8625-4077-8bae-fa140fefda3e
Zhao, Qi
8713d742-7b93-46cc-8457-9140e049c47a
Shen, Yijie
42410cf7-8adb-4de6-9175-a1332245c368
Liu, Yidong
0e2e075c-8025-4d88-8d2a-df02df22664d
Yang, Yuanjie
32f56f97-ebc4-48f9-8b06-cd75cd6872d0
Zeng, Ruoyu, Zhao, Qi, Shen, Yijie, Liu, Yidong and Yang, Yuanjie
(2021)
Structural stability of open vortex beams.
Applied Physics Letters, 119 (17), [171105].
(doi:10.1063/5.0062967).
Abstract
Normally, intensity patterns of vortex beams are closed rings such as Laguerre–Gaussian beams and Bessel–Gaussian beams. Recent studies showed that the vortex beams with open ring structures, namely, open vortex beams (OVBs), have non-trivial orbital angular momentum (OAM) spectra and optical forces and can be employed in many applications such as metrology and quantum information. However, the structural stability of OVBs, including the topological charge conservation and the intensity invariance, has not been studied yet. Here, we theoretically propose a generalized model of OVBs, using both geometrical ray-like trajectories and coherent wave-packets, and the structural stability of OVBs is validated by the geometrical envelope of ray bundles. Moreover, we experimentally demonstrated that such OVBs can be generated by a partial fork-grating (PFG). Our study reveals structural characteristics of OVBs, which lays a foundation for the OVB's potential applications in optical manipulation, optical metrology, etc.
Text
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More information
Accepted/In Press date: 12 October 2021
e-pub ahead of print date: 25 October 2021
Published date: 25 October 2021
Additional Information:
Funding Information:
This work was supported by the National Natural Science Foundation of China (Nos. 11874102 and 12174047), the Sichuan Province Science and Technology Support Program (No. 2020JDRC0006), and the Fundamental Research Funds for the Central Universities under Grant No. ZYGX2019J102.
Publisher Copyright:
© 2021 Author(s).
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Local EPrints ID: 453285
URI: http://eprints.soton.ac.uk/id/eprint/453285
ISSN: 0003-6951
PURE UUID: 21bd614f-faef-48d9-ab70-5b1b9bb8c5b4
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Date deposited: 12 Jan 2022 17:32
Last modified: 16 Mar 2024 14:52
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Author:
Ruoyu Zeng
Author:
Qi Zhao
Author:
Yijie Shen
Author:
Yidong Liu
Author:
Yuanjie Yang
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