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Photonics
Special Issues
Diffractive Optics for Generation and Transformation of Structured Light
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Diffractive Optics for Generation and Transformation of Structured Light

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

Deadline for manuscript submissions: closed (20 January 2023) | Viewed by 8132

Special Issue Editor

Prof. Dr. Svetlana Nikolaevna Khonina

E-Mail Website
Guest Editor
Department of Technical Cybernetics, Samara National Research University, 443086 Samara, Russia
Interests: diffractive optics; singular optics; sharp focusing; polarization transformation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Structured light is a term often used to describe light fields with a certain configuration of amplitude, phase, and/or polarization distribution. Today, structured laser beams are widely used in optical and quantum communications, the laser processing of materials, optical microscopy, and biophotonics. The possibility of controlling not only the distribution of the generated laser beam intensity but also its phase distribution and polarization state is critically important and can be effectively performed using diffractive optical elements (DOEs). In recent years, DOEs have been widely used for the shaping of specified complex field distributions, including so-called vortex laser beams carrying an orbital angular momentum, for the realization of polarization transformations, and also for forming fields with a longitudinal field component. Their high damage threshold and efficiency and the possibility for their miniaturization have made DOEs a practical tool for the realization of centimeter-, millimeter-, and micrometer-scale optical devices.

This Special Issue introduces new theoretical aspects of diffractive optics and practical applications of DOEs in the generation, transformation, and control of structured beams.

This Special Issue will focus on state-of-the-art research on diffractive optics and diffractive optics-based devices. In this Special Issue, original research articles, letters, and reviews are welcome.

Research areas may include (but are not limited to) the following：

  • General aspects of diffractive optics;
  • Optical elements;
  • Diffractive optics-based devices;
  • Design algorithms;
  • Phase and amplitude encoding;
  • Structured light beams;
  • Polarization transformation;
  • Superresolution;
  • Optical processing.

Prof. Dr. Svetlana Nikolaevna Khonina
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.

Keywords

  • diffractive optics
  • diffractive optics-based devices
  • design algorithms
  • phase and amplitude encoding
  • structured light beams
  • polarization transformation
  • beam shaping

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Published Papers (3 papers)

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Research

15 pages, 4753 KiB  
Article
Optical Bottle Shaping Using Axicons with Amplitude or Phase Apodization
by Svetlana N. Khonina, Andrey V. Ustinov, Sergey I. Kharitonov, Sergey A. Fomchenkov and Alexey P. Porfirev
Photonics 2023, 10(2), 200; https://doi.org/10.3390/photonics10020200 - 13 Feb 2023
Cited by 7 | Viewed by 2013
Abstract
We investigate the formation of single and multiple optical bottle beams on the optical axis using a diffractive axicon with amplitude or phase apodization. The proposed approach allows one to control the location and the contrast of the boundaries of the generated dark [...] Read more.
We investigate the formation of single and multiple optical bottle beams on the optical axis using a diffractive axicon with amplitude or phase apodization. The proposed approach allows one to control the location and the contrast of the boundaries of the generated dark intensity regions on the optical axis. Experimental results obtained using a spatial light modulator are in good agreement with numerically obtained ones. We successfully used the designed and experimentally formed set of three optical bottle beams for trapping light-absorbing agglomerations of carbon nanoparticles in air under the action of photophoretic forces. This confirms the efficiency of the proposed approach for optical manipulation applications. Full article
(This article belongs to the Special Issue Diffractive Optics for Generation and Transformation of Structured Light)
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13 pages, 7662 KiB  
Article
Implementation of a Large-Area Diffractive Lens Using Multiple Sub-Aperture Diffractive Lenses and Computational Reconstruction
by Shivasubramanian Gopinath, Praveen Periysamy Angamuthu, Tauno Kahro, Andrei Bleahu, Francis Gracy Arockiaraj, Daniel Smith, Soon Hock Ng, Saulius Juodkazis, Kaupo Kukli, Aile Tamm and Vijayakumar Anand
Photonics 2023, 10(1), 3; https://doi.org/10.3390/photonics10010003 - 21 Dec 2022
Cited by 10 | Viewed by 2583
Abstract
Direct imaging systems that create an image of an object directly on the sensor in a single step are prone to many constraints, as a perfect image is required to be recorded within this step. In designing high resolution direct imaging systems with [...] Read more.
Direct imaging systems that create an image of an object directly on the sensor in a single step are prone to many constraints, as a perfect image is required to be recorded within this step. In designing high resolution direct imaging systems with a diffractive lens, the outermost zone width either reaches the lithography limit or the diffraction limit itself, imposing challenges in fabrication. However, if the imaging mode is switched to an indirect one consisting of multiple steps to complete imaging, then different possibilities open. One such method is the widely used indirect imaging method with Golay configuration telescopes. In this study, a Golay-like configuration has been adapted to realize a large-area diffractive lens with three sub-aperture diffractive lenses. The sub-aperture diffractive lenses are not required to collect light and focus them to a single point as in a direct imaging system, but to focus independently on different points within the sensor area. This approach of a Large-Area Diffractive lens with Integrated Sub-Apertures (LADISA) relaxes the fabrication constraints and allows the sub-aperture diffractive elements to have a larger outermost zone width and a smaller area. The diffractive sub-apertures were manufactured using photolithography. The fabricated diffractive element was implemented in indirect imaging mode using non-linear reconstruction and the Lucy–Richardson–Rosen algorithm with synthesized point spread functions. The computational optical experiments revealed improved optical and computational imaging resolutions compared to previous studies. Full article
(This article belongs to the Special Issue Diffractive Optics for Generation and Transformation of Structured Light)
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9 pages, 4579 KiB  
Communication
Laguerre-Gaussian Beams with an Increased Dark Area and Autofocusing
by Victor V. Kotlyar, Eugeny G. Abramochkin, Alexey A. Kovalev and Alexandra A. Savelyeva
Photonics 2022, 9(10), 708; https://doi.org/10.3390/photonics9100708 - 28 Sep 2022
Viewed by 2646
Abstract
We introduce and investigate a novel Laguerre-Gaussian (LG) beam, different from the conventional modal LG beams, which conserve the transverse intensity structure (up to scale) on propagation. The proposed beam does not conserve its structure on free space propagation but possesses some interesting [...] Read more.
We introduce and investigate a novel Laguerre-Gaussian (LG) beam, different from the conventional modal LG beams, which conserve the transverse intensity structure (up to scale) on propagation. The proposed beam does not conserve its structure on free space propagation but possesses some interesting properties. This beam is Fourier-invariant, and it has an increased dark area both in the initial (waist) plane and in the far field. Thus, without changing the topological charge of the beam, varying the radial (lower) index of the associated Laguerre polynomial allows increasing or decreasing the effective diameter of the central dark spot in the intensity pattern. In addition, the beam is autofocusing, i.e., the intensity distribution at the Rayleigh distance from the waist has a shape of the light ring (at any value of the radial index) with the minimal diameter and with the maximal on-ring intensity. Such a beam can be adopted for microparticle manipulation. Increasing the dark area in the focus of a high-aperture spherical lens allows the simultaneous trapping of several absorbing microparticles into this dark area. Full article
(This article belongs to the Special Issue Diffractive Optics for Generation and Transformation of Structured Light)
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