Advances in Micro and Nano-Photonics: Emerging Materials and Applications

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optoelectronics and Optical Materials".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 1993

Special Issue Editors


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Guest Editor
Optoelectronics Research Centre, University of Southampton, University Road, Southampton SO17 1BJ, UK
Interests: photonics; microresonator; optical fiber; nanoparticle; plasmon; sensing; laser

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Guest Editor
Optoelectronics Research Centre, University of Southampton, University Road, Southampton SO17 1BJ, UK
Interests: whispering gallery modes; micro and nanolasers; photonic nanojet; metasurfaces; Raman spectroscopy; biosensors; infrared spectroscopy

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Guest Editor
Department of Physics, University of Maryland, 4296 Stadium Dr, College Park, MD 20742, USA
Interests: biological physics; intracellular mechanics; nanobiotechnology; microscopy; nanophysics

Special Issue Information

Dear Colleagues,

The field of micro and nano-photonics is rapidly evolving, driven by the development of innovative materials and devices that operate at increasingly smaller scales. This special issue focuses on giving a comprehensive overview of latest advances in micro- and nano-photonics, with a particular emphasis on emerging materials, meso and nano photonics, and novel applications.

Recent breakthroughs in the synthesis and characterization of photonic materials have led to significant improvements in device performance, as well as a broadening of their applications. This issue will showcase a range of topics, including:

  • Synthesis, characterization, spectroscopy, and applications of nanoparticles
  • Synthesis, characterization, spectroscopy and applications of 2D materials
  • Spectroscopy of hybrid materials, complexes, atomic and molecular clusters, and molecular aggregates
  • Photonics of chiral micro and nanostructures
  • Photonics of anisotropic micro and nanostructures
  • Nanoand microparticles in biological research and medical diagnostics
  • Light-matter interaction in biology and medicine
  • Light-matter interaction at the mesoscale
  • Light-emitting nanostructures, nano- and microlasers
  • Photonic sensors and biosensors
  • Single-particle and single-molecule studies
  • Optical manipulation of nanoparticles and molecules, optical forces

Together, will also explore the potential of these emerging research areas to revolutionize industries such as healthcare and environmental monitoring. We invite you to contribute your cutting-edge results to this issue, highlighting the promising future of micro- and nano-photonics in fundamental research and practical applications.

Dr. Nikita Toropov
Dr. Aneesh Veluthandath
Dr. Maria Mukhina
Guest Editors

Manuscript Submission Information

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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

  • nanoparticle
  • microparticle
  • emission
  • laser
  • chirality
  • anisotropy
  • sensor
  • diagnostics
  • biomedicine
  • light-matter interaction
  • optical manipulation

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Published Papers (2 papers)

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Research

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9 pages, 1226 KiB  
Communication
J-Aggregate-Enhanced Hybrid Nanoporous Alumina for Resonator-Free Amplified Emission
by Evgeniia O. Soloveva, Nikita Toropov and Anton A. Starovoytov
Photonics 2025, 12(4), 330; https://doi.org/10.3390/photonics12040330 - 1 Apr 2025
Viewed by 419
Abstract
This study explores the development and optical characterization of a hybrid material combining nanoporous anodic alumina with J-aggregates of pseudoisocyanine dyes, highlighting its potential for photonic applications in bright broadband sources. The hybrid material was synthesized by impregnating an alumina matrix with a [...] Read more.
This study explores the development and optical characterization of a hybrid material combining nanoporous anodic alumina with J-aggregates of pseudoisocyanine dyes, highlighting its potential for photonic applications in bright broadband sources. The hybrid material was synthesized by impregnating an alumina matrix with a dye solution, which facilitated a thermally stimulated self-assembly process for the formation of J-aggregates. The incorporation of J-aggregates within the matrix was confirmed through several independent optical measurement techniques. A distinct absorption peak and corresponding luminescence signal were attributed to J-aggregate formation, while energy transfer from the alumina’s intrinsic oxygen vacancy centers to the dye aggregates was observed under specific excitation conditions. Amplified spontaneous emission was achieved under pulsed laser excitation, characterized by spectral narrowing and a nonlinear increase in emission intensity beyond a critical pump threshold, indicative of a similarity with random lasing facilitated by scattering within the porous structure. Full article
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Review

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36 pages, 5120 KiB  
Review
Enhancing Optoelectronic Performance Through Rare-Earth-Doped ZnO: Insights and Applications
by Shagun Sood, Pawan Kumar, Isha Raina, Mrinmoy Misra, Sandeep Kaushal, Jyoti Gaur, Sanjeev Kumar and Gurjinder Singh
Photonics 2025, 12(5), 454; https://doi.org/10.3390/photonics12050454 - 8 May 2025
Viewed by 1192
Abstract
Rare-earth (RE) doping has been found to be a potent method to improve the structural, optical, electronic, and magnetic properties of ZnO, positioning it as a versatile material for future optoelectronic devices. This review herein thoroughly discusses the latest developments in RE-doped ZnO [...] Read more.
Rare-earth (RE) doping has been found to be a potent method to improve the structural, optical, electronic, and magnetic properties of ZnO, positioning it as a versatile material for future optoelectronic devices. This review herein thoroughly discusses the latest developments in RE-doped ZnO based on the role of the dopant type, concentration, synthesis method, and consequences of property modifications. The 4f electronic states of rare-earth elements create strong visible emissions, control charge carriers, and design defects. These structural changes lead to tunable bandgap energies and increased light absorption. Also, RE doping considerably enhances ZnO’s performance in electronic devices, like UV photodetectors, LEDs, TCOs, and gas sensors. Though, challenges like solubility constraints and lattice distortions at higher doping concentrations are still key challenges. Co-doping methodologies and new synthesis techniques to further optimize the incorporation of RE into ZnO matrices are also reviewed in this article. By showing a systematic comparison of different RE-doped ZnO systems, this paper sheds light on their future optoelectronic applications. The results are useful for the design of advanced ZnO-based materials with customized functionalities, which will lead to enhanced device efficiency and new photonic applications. Full article
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