Advancements in Optical Beam Design and Applications

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".

Deadline for manuscript submissions: closed (25 January 2024) | Viewed by 2373

Special Issue Editor


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Guest Editor
Aerospace Information Research Institute, Beijing, China
Interests: terahertz wave; difference frequency generation; DGF crystal; inorganic crystal; organic crystal; QPM crystal; optomechanical synchronization; optomechanical crystal; optomechanical oscillators

Special Issue Information

Dear Colleagues,

Optical beam design and manipulation can be achieved using multiple elements, such as spatial light modulators, diffractive optical elements, plasmonic or metasurfaces, etc., which have important applications in plasma excitation, laser precision machining, ultra-continuum spectroscopy, particle manipulation, high-resolution optical microscopy, light bullet generation, etc. Even after decades of research, novel optical beams and their properties, especially in laser communication, imaging, detection and other applications, still need further investigation. This Special Issue provides an overview of the fundamental research, recent advances and potential applications of beam designs, including Airy, Bessel, vortex, pin-like and other newly designed beams, in various fields. The aim of this Special Issue is to explore the physical properties of specially designed optical beams and fully exploit their applications in LIDAR, optical communications, materials science, biomedicine and other fields.

Potential topics include, but are not limited to, the following:

  • Generation and application of Airy beams;
  • Recent advancements in Bessel-like and vortex optical beams;
  • Applications of pin-like optical beams;
  • Optical beam design in free-space laser communication;
  • Future perspectives for beam manipulation;
  • Optical beam steering and tunable metasurfaces.

Dr. Ze Zhang
Guest Editor

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.

Published Papers (2 papers)

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Research

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10 pages, 2092 KiB  
Article
Exact and Paraxial Broadband Airy Wave Packets in Free Space and a Temporally Dispersive Medium
by Ioannis M. Besieris and Peeter Saari
Photonics 2024, 11(1), 94; https://doi.org/10.3390/photonics11010094 - 21 Jan 2024
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Abstract
A question of physical importance is whether finite-energy spatiotemporally localized (i.e., pulsed) generalizations of monochromatic accelerating Airy beams are feasible. For luminal solutions, this question has been answered within the framework of paraxial geometry. The time-diffraction technique that has been motivated by the [...] Read more.
A question of physical importance is whether finite-energy spatiotemporally localized (i.e., pulsed) generalizations of monochromatic accelerating Airy beams are feasible. For luminal solutions, this question has been answered within the framework of paraxial geometry. The time-diffraction technique that has been motivated by the Lorentz invariance of the equation governing the narrow angular spectrum and narrowband temporal spectrum paraxial approximation has been used to derive finite-energy spatiotemporally confined subluminal, luminal, and superluminal Airy wave packets. The goal in this article is to provide novel exact finite-energy broadband spatio-temporally localized Airy solutions (a) to the scalar wave equation in free space; (b) in a dielectric medium moving at its phase velocity; and (c) in a lossless second-order temporally dispersive medium. Such solutions can be useful in practical applications involving broadband (few-cycle) wave packets. Full article
(This article belongs to the Special Issue Advancements in Optical Beam Design and Applications)
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Review

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16 pages, 1666 KiB  
Review
The Arago–Poisson Spot: New Applications for an Old Concept
by Olivier Emile and Janine Emile
Photonics 2024, 11(1), 55; https://doi.org/10.3390/photonics11010055 - 4 Jan 2024
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Abstract
Herein, we report some specific properties and applications of the so-called Arago–Poisson spot in optics. This spot results from the diffraction of a plane wave by an occulting disk that leads to a small bright spot in its shadow. We discuss some of [...] Read more.
Herein, we report some specific properties and applications of the so-called Arago–Poisson spot in optics. This spot results from the diffraction of a plane wave by an occulting disk that leads to a small bright spot in its shadow. We discuss some of the properties of such beams. In particular, we focus on the ultimate size that can be reached for these beams, which depends on the diameter of the disk, the wavelength, and the distance from the disk. We also highlight self-healing and faster-than-light properties. Applications are then proposed. The applications mainly deal with new traps with nanometer sizes dedicated to the trapping of nanoparticles. We also discuss beams that change frequency during propagation and their application for signal delivery in a precise and determined area. Full article
(This article belongs to the Special Issue Advancements in Optical Beam Design and Applications)
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