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Advanced Photonic Metamaterials and Its Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 702

Special Issue Editors

Special Issue Information

Dear Colleagues,

Metamaterials have, in the last few decades, inspired scientists and engineers to think about waves beyond traditional constraints imposed by materials in which they propagate, conceiving new functionalities, such as subwavelength imaging, invisibility cloaking and broadband ultraslow light. While mainly for ease of fabrication, many of the metamaterial concepts have initially been demonstrated at longer wavelengths and for microwaves, and metamaterials have subsequently moved to photonic frequencies and the nanoscale. At the same time, metamaterials are recently embedding new quantum materials such as graphene, dielectric nanostructures and, as metasurfaces, surface geometries and surface waves while also embracing new functionalities such as nonlinearity, quantum gain and strong light–matter coupling.

This Special Issue is devoted to exhibiting the current state of the art of the dynamic and vibrant field of photonic metamaterials reaching across various disciplines, suggesting exciting applications in chemistry, material science, biology, medicine and engineering. It will illuminate recent advances in the wider photonic metamaterials field, such as (to mention a few) active metamaterials and metasurfaces, self-organized nanoplasmonic metamaterials, graphene metamaterials, metamaterials with negative or vanishing refractive index and topological metamaterials facilitating ultraslow broadband waves on the nanoscale and novel applications, such as stopped-light lasing.

Prof. Dr. Edik U. Rafailov
Dr. Tatjana Gric
Guest Editors

Manuscript Submission Information

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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

  • metamaterial
  • metasurface
  • graphene
  • effective medium
  • anisotropy

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Published Papers (1 paper)

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Research

19 pages, 5144 KiB  
Article
An Optimized Graphene-Based Surface Plasmon Resonance Biosensor for Detecting SARS-CoV-2
by Talia Tene, Fabian Arias Arias, Karina I. Paredes-Páliz, Camilo Haro-Barroso and Cristian Vacacela Gomez
Appl. Sci. 2024, 14(22), 10724; https://doi.org/10.3390/app142210724 - 19 Nov 2024
Viewed by 326
Abstract
Graphene-enhanced surface plasmon resonance (SPR) biosensors offer promising advancements in viral detection, particularly for SARS-CoV-2. This study presents the design and optimization of a multilayer SPR biosensor incorporating silver, silicon nitride, single-layer graphene, and thiol-tethered ssDNA to achieve high sensitivity and specificity. Key [...] Read more.
Graphene-enhanced surface plasmon resonance (SPR) biosensors offer promising advancements in viral detection, particularly for SARS-CoV-2. This study presents the design and optimization of a multilayer SPR biosensor incorporating silver, silicon nitride, single-layer graphene, and thiol-tethered ssDNA to achieve high sensitivity and specificity. Key metrics, including SPR angle shift (Δθ), sensitivity (S), detection accuracy (DA), and figure of merit (FoM), were assessed across SARS-CoV-2 concentrations from 150 to 525 mM. The optimized biosensor achieved a sensitivity of 315.91°/RIU at 275 mM and a maximum Δθ of 4.2° at 400 mM, demonstrating strong responsiveness to virus binding. The sensor maintained optimal accuracy and figure of merit at lower concentrations, with a linear sensitivity response up to 400 mM, after which surface saturation limited further responsiveness. These results highlight the suitability of the optimized biosensor for real-time, point-of-care SARS-CoV-2 detection, particularly at low viral loads, supporting its potential in early diagnostics and epidemiological monitoring. Full article
(This article belongs to the Special Issue Advanced Photonic Metamaterials and Its Applications)
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