Exploring Cutting-Edge Technologies and Applications of Optics and Photonics

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

Deadline for manuscript submissions: 31 August 2025 | Viewed by 988

Special Issue Editors


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Guest Editor
Department of Medical Engineering, University of South Florida, Tampa, FL 33620, USA
Interests: biomedical optics/biophotonics; diffuse optical tomography; photoacoustic tomography; fluorescence molecular tomography; thermoacoustic tomography; image-guided interventions of cancers and neurodisordersmolecular tomography; thermoacoustic tomography; image-guided interventions of cancers and neurodisorders
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Guest Editor
Institute of Photonics and Nanotechnology, National Research Council, IFN-CNR CSMFO Laboratory, Via alla Cascata 56/C, Povo, 38123 Trento, Italy
Interests: glass photonics; properties, structure and processing of glasses, crystals and film for optical applications and photonics; integrated optics; transparent glass ceramics; confined structures including photonic crystals, waveguides, microcavities, and microresonators

Special Issue Information

Dear Colleagues,

This Special Issue is related to the conference “The 1st International Online Conference on Photonics (IOCP 2024)”, which will be held from 14 to 16 October 2024 (https://sciforum.net/event/IOCP2024). This e-conference will be hosted on sciforum.net, an online platform developed by MDPI for scholarly exchange and collaboration.

During the event, a large number of excellent contributions covering key areas of opportunity and challenge will be presented. More specifically, the following areas will be covered:

  • Biophotonics and biomedical optics;
  • Optical communication and networks;
  • Optoelectronics and optical materials;
  • Lasers, light sources, and sensors;
  • Optical interaction science;
  • Quantum photonics and technologies;
  • Data-science-based techniques in photonics;
  • New applications enabled by photonics technologies and systems.

IOCP 2024 participants, as well as all researchers working in the field, are invited to contribute original research papers or reviews to this Special Issue of Photonics.

Submitted contributions will be subjected to peer review and—upon acceptance—will be published with the aim of rapidly and widely disseminating research results, developments, and applications.

It should be noted that the extended conference paper should have a significant amount of additional, new, and unpublished material as compared to the IOCP 2024 published paper.

We look forward to receiving your contributions.

Prof. Dr. Francesco Prudenzano
Prof. Dr. Huabei Jiang
Dr. Maurizio Ferrari
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

  • biophotonics
  • optoelectronics
  • optical materials
  • optical sensors
  • quantum photonics
  • optics
  • lasers
  • nonlinear optics
  • optical computing

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Published Papers (2 papers)

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Research

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24 pages, 8994 KiB  
Article
Integrated Bragg Grating Spectra
by José Ángel Praena and Alejandro Carballar
Photonics 2025, 12(4), 351; https://doi.org/10.3390/photonics12040351 - 8 Apr 2025
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Abstract
In this paper, we present a general methodology suitable for analyzing any IBG (Integrated Bragg Grating) as a linear time-invariant (LTI) system using the effective refractive index (ERI) and transfer matrix method (TMM). This approach is based on the translation of the IBG’s [...] Read more.
In this paper, we present a general methodology suitable for analyzing any IBG (Integrated Bragg Grating) as a linear time-invariant (LTI) system using the effective refractive index (ERI) and transfer matrix method (TMM). This approach is based on the translation of the IBG’s physical structure into a matrix of effective refractive indexes, neff, which is wavelength-dependent and describes the behavior of light in the IBG while avoiding the use of approximations like Coupled Mode Theory does. This procedure allows to obtain very accurate reflection and transmission spectra, regardless of the perturbation complexity of the grating. Using this methodology, different apodization and chirp methods are revised and compared. Its generality is considered by analyzing two distinct technological platforms, silicon-on-insulator (SOI) and aluminum oxide (Al2O3). Full article
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Review

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23 pages, 4596 KiB  
Review
Multimodal Imaging in Stem Cell Therapy for Retinal Disease
by Mi Zheng and Yannis M. Paulus
Photonics 2025, 12(5), 413; https://doi.org/10.3390/photonics12050413 - 24 Apr 2025
Abstract
Stem cell therapy has emerged as a promising approach for treating various retinal diseases, particularly degenerative retinal diseases such as geographic atrophy in age-related macular degeneration (AMD), retinitis pigmentosa (RP), and Stargardt disease. A wide variety of imaging techniques have been employed in [...] Read more.
Stem cell therapy has emerged as a promising approach for treating various retinal diseases, particularly degenerative retinal diseases such as geographic atrophy in age-related macular degeneration (AMD), retinitis pigmentosa (RP), and Stargardt disease. A wide variety of imaging techniques have been employed in both preclinical and clinical settings to assess the efficacy and safety of stem cell therapy for retinal diseases. These techniques can be classified into two categories: methods for imaging stem cells and those for the overall morphology and function of the retina. The techniques employed for stem cell imaging include optical imaging, magnetic resonance imaging (MRI), and radionuclide imaging. Additional imaging techniques include fundus photography, fluorescein angiography, and fundus autofluorescence. Each technique has its own advantages and disadvantages, and thus, the use of multimodal imaging can help to overcome the shortcomings and achieve a more comprehensive evaluation of stem cell therapy in retinal disease. This review discusses the characteristics of the main techniques and cell-labeling techniques applied in stem cell therapy, with a particular focus on the applications of multimodal imaging. Furthermore, this review discusses the challenges and prospects of multimodal imaging in stem cell therapy for retinal disease. Full article
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