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Photonics
Special Issues
Coherence Manipulation, Propagation and Applications of Vortex Beam
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Coherence Manipulation, Propagation and Applications of Vortex Beam

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Interaction Science".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 2858

Special Issue Editors

Dr. Jun Zeng

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Guest Editor
School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
Interests: vortex beam; coherence; partially coherent beam; beam transmission and control; atmospheric turbulence
Prof. Dr. Jinhong Li

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Guest Editor
School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, China
Interests: vortex beam; light manipulations; beams control; laser propagation; atmosphere turbulence; gradient-index fiber

Special Issue Information

Dear Colleagues,

The manipulation of the vortex phase in the optical field has given rise to a new subject, namely singularity optics, whose main research object is the vortex beam. Vortex beams possess novel physical properties, such as a spiral wave front, phase singularity and orbital angular momentum, which have important applications in particle manipulation, quantum information, super-resolution imaging, biomedicine, optical communication, nano machining, and astronomical detection, among others. Coherence, as another important inherent property of the light field, is also controllable. The manipulation of the coherence of the light field, especially joint control using the vortex phase, can cause some unique physical effects (such as coherent singularity, beam shaping, self-healing, polarization state conversion, nonlinearity enhancement, anti-turbulence, etc.), and show unique advantages and application prospects in the fields of free-space optical communication, ghost imaging, atmospheric detection, nonlinear optics and information encryption. This Special Issue aims to discuss the latest advances in the coherence manipulation, propagation and application of vortex beams, and the subsequent development of new light field manipulation principles and the proposal of effective solutions to address various challenges in the practical application of vortex light fields.

Dr. Jun Zeng
Prof. Dr. Jinhong Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • vortex beams
  • light manipulation
  • coherence
  • coherence structure
  • beam propagation
  • atmospheric turbulence
  • optical trapping
  • information transmission

Published Papers (3 papers)

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Research

8 pages, 2447 KiB  
Communication
Evolution of the Phase Singularity of an Orbital Angular Momentum Beam with an Astigmatism Phase
by Chunhao Liang, Cuiling Zheng, Xinru Lian, Qian Chen, Yaru Gao, Jinsong Liu, Yangjian Cai and Jun Zeng
Photonics 2024, 11(2), 149; https://doi.org/10.3390/photonics11020149 - 5 Feb 2024
Viewed by 899
Abstract
In this study, we explore the impact of the astigmatism phase on the evolution of the phase singularity of an orbital angular momentum (OAM) beam propagating through free space. The results demonstrate that the high-order phase singularity dispersed into a cluster of individual [...] Read more.
In this study, we explore the impact of the astigmatism phase on the evolution of the phase singularity of an orbital angular momentum (OAM) beam propagating through free space. The results demonstrate that the high-order phase singularity dispersed into a cluster of individual unit phase singularities owing to the astigmatism phase. The number of singularities equaled the topological charge of the OAM beam. By adjusting the astigmatism phase, we could manipulate and control the evolution of the phase singularities, including their displacements and rotation angles. These findings offer significant prospects for customizing 3D vortex lines, optical topologies, and applications involving topological charge measurement, information encoding, and transfer. Full article
(This article belongs to the Special Issue Coherence Manipulation, Propagation and Applications of Vortex Beam)
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9 pages, 1811 KiB  
Article
Numerical Analysis and Verification of Off-Axis Double Vortex Beams
by Jianqiang Ye, Yuxia Zhou, Palidan Aierken, Xining Yang, Zhaoxue Li and Taximaiti Yusufu
Photonics 2024, 11(2), 123; https://doi.org/10.3390/photonics11020123 - 29 Jan 2024
Viewed by 789
Abstract
Vortex beams are unique in that they have annular spatial profiles and carry orbital angular momentum. This has led to their use in applications including laser processing, microparticle manipulation and signal transmission. Off-axis vortex beams, which may be considered a subset of vortex [...] Read more.
Vortex beams are unique in that they have annular spatial profiles and carry orbital angular momentum. This has led to their use in applications including laser processing, microparticle manipulation and signal transmission. Off-axis vortex beams, which may be considered a subset of vortex beams, display a broader spectrum of physical characteristics in comparison with their conventional (integer-order) counterparts. In this work, we derive the equations which describe the intensity distribution of off-axis vortex beams and use these to theoretically model their spatial profile. These models are supported by experimental generation of both integer and off-axis vortex beams, and the presence of orbital angular momentum is investigated through the use of the cylindrical lens transformation method. Full article
(This article belongs to the Special Issue Coherence Manipulation, Propagation and Applications of Vortex Beam)
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14 pages, 19034 KiB  
Article
Partially Coherent Off-Axis Double Vortex Beam and Its Properties in Oceanic Turbulence
by Luli Chen, Guiqiu Wang, Yan Yin, Haiyang Zhong, Dajun Liu and Yaochuan Wang
Photonics 2024, 11(1), 20; https://doi.org/10.3390/photonics11010020 - 26 Dec 2023
Viewed by 772
Abstract
A partially coherent off-axis double vortex beam (PCOADVB) composed of two off-axis vortices is theoretically presented. The analytical equations of a PCOADVB in oceanic turbulence are presented, and the intensity profiles and the number of coherence vortices of the PCOADVBs are investigated based [...] Read more.
A partially coherent off-axis double vortex beam (PCOADVB) composed of two off-axis vortices is theoretically presented. The analytical equations of a PCOADVB in oceanic turbulence are presented, and the intensity profiles and the number of coherence vortices of the PCOADVBs are investigated based on the derived expressions. The numerical results show that the intensity profiles of PCOADVBs are determined by the initial topological charges M1 and M2 and the positions of the off-axis vortices (x1d,y1d) and (x2d,y2d). The intensity profiles of PCOADVBs will lose the off-axis ring intensity profile and acquire a Gaussian-like profile as z increases, and stronger oceanic turbulence and a smaller σ can help the PCOADVB evolve into a spot with a Gaussian-like profile faster on propagation. The number of coherence vortices of a PCOADVB in oceanic turbulence will increase on propagation. The PCOADVB may have potential applications in underwater laser sensing and wireless communications. Full article
(This article belongs to the Special Issue Coherence Manipulation, Propagation and Applications of Vortex Beam)
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