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Photonics
Special Issues
Vortex Beams: Transmission, Scattering and Application
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Vortex Beams: Transmission, Scattering and Application

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1033

Special Issue Editors

Dr. Tan Qu

E-Mail Website
Guest Editor
School of Electronic Engineering, Xidian University, Xi’an, China
Interests: light scattering; vortex beam transmission and scattering; optical manipulation; OAM mode recognition
Dr. Renxian Li

E-Mail Website
Guest Editor
School of Physics, Xidian University, Xi’an 710071, China
Interests: vortex beam; light scattering; beam propagation; optical design; neural network
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Vortex beams have recently received significant attention because of their spiral phase distribution with orbital angular momentum (OAM). They have been widely used in light scattering, optical tweezers, optical wireless communication, and advanced optics filed regulation. Vortex beams can be expanded into a series of superimposed plane waves, and their interaction with matter will produce different scattering field distribution characteristics related to the topological charge and half-conical angle. Their unique light field distribution characteristics trap particles with a low and high refractive index, realizing optical manipulation as needed. The OAM of vortex beams has also been exploited to improve the data transmission capacity of free-space optical communication, which provides a new dimension outside of the amplitude, phase, wavelength, and polarization of light fields. Therefore, research on the propagation of vortex beams in atmospheric turbulence and OAM mode detection will contribute to OAM optical communication. We believe that advances in these research fields will push this technology forward.

This Special Issue will cover a range of topics from the field including, but not limited to, the following:

  • Vortex beam scattering;
  • Propagation of optical beams in atmospheric turbulence;
  • Vortex beam transmission in multilayered medium;
  • Regulation of vortex beam fields;
  • Optical manipulation by vortex beams;
  • Atmospheric optics;
  • Orbital angular momentum state recognition;
  • Optics communications;
  • Terahertz vortex beams, networks, and systems;
  • Vortex beams and OAM modes;
  • Applications of vortex beam scattering and propagation.

Dr. Tan Qu
Dr. Renxian 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 beam
  • light scattering
  • beam transmission
  • orbital angular momentum
  • optical communication
  • imaging

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Published Papers (1 paper)

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Research

21 pages, 20069 KiB  
Article
Tunable Photonic Hook Design Based on Anisotropic Cutting Liquid Crystal Microcylinder
by Renxian Li, Huan Tang, Mingyu Zhang, Fengbei Liu, Ruiping Yang, Naila Khaleel, Muhammad Arfan, Muhammad Asif, Igor V. Minin and Oleg V. Minin
Photonics 2024, 11(8), 736; https://doi.org/10.3390/photonics11080736 - 7 Aug 2024
Viewed by 677
Abstract
The selective control and manipulation of nanoparticles require developing and researching new methods for designing optical tweeters, mainly based on a photonic hooks (PHs) effect. This paper first proposes a tunable PH in which a structured beam illuminates an anisotropic cutting liquid crystal [...] Read more.
The selective control and manipulation of nanoparticles require developing and researching new methods for designing optical tweeters, mainly based on a photonic hooks (PHs) effect. This paper first proposes a tunable PH in which a structured beam illuminates an anisotropic cutting liquid crystal microcylinder based on the Finite-DifferenceTime-Domain (FDTD) method. The PHs generated by plane wave, Gaussian, and Bessel beam are analyzed and compared. The impact of beams and LC particle parameters on the PHs are discussed. Where the influence of the extraordinary refractive index (ne) on PHs is emphasized. Our results reveal that introducing birefringence can change the bending direction of PH. Besides, the maximum intensity of the PHs increases as ne increases regardless of the beam type. The PH generated by a plane wave has a higher maximum intensity and smaller FWHM than that generated by the Gaussian and Bessel beams. The smallest FWHM and maximum intensity of the PHs generated by the Gaussian falls between that generated by the plane wave and the Bessel beam. The PH generated by a Bessel beam has the minor maximum intensity and the largest FWHM. Still, it exceeds the diffraction limit and exhibits bending twice due to its self-recovery property. This paper provides a new way to modulate PH. This work offers novel theoretical models and the degree of freedom for the design of PHs, which is beneficial for the selective manipulation of nanoparticles. It has promising applications in Mesotronics and biomedicine. Full article
(This article belongs to the Special Issue Vortex Beams: Transmission, Scattering and Application)
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