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Photonics
Special Issues
Nano/Micromechanical Metasurfaces and Active Metasurfaces/Plasmonics
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Nano/Micromechanical Metasurfaces and Active Metasurfaces/Plasmonics

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

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 6262

Special Issue Editors

Dr. Jun-Yu Ou

E-Mail Website
Guest Editor
Zepler Institute, Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK
Interests: metamaterials; nanophotonics; nanofabrication; MEMS/NEMS; optical/electron imaging and metrology
Dr. Kenzo Yamaguchi

E-Mail Website
Guest Editor
Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjhma-cho, Tokushima 770-8506, Japan
Interests: plasmonics; micro- and nano-photonics; micro- and nano-electromechanical systems; crystalline structure control; stencil lithography; non-destructive measurement

Special Issue Information

Dear Colleagues,

Metasurfaces/plasmonics can be artificially engineered for a desired electromagnetic response. The optical response of metasurfaces is controlled by the geometrics of unit cells; however, the excellent functionalities of metasurfaces, such as a perfect absorber, epsilon-near-zero (ENZ), and metalenses, are normally fixed by its geometries. 

The advances in nano- and microelectromechanical systems (N/MEMS) technologies, with the ability to reconfigure mechanical structures in the nanoscale, a low power consumption, and mass producibility, offer an approach for tuning the structural reconfiguration of metasurface/plasmonics EM properties.

 

This Special Issue aims to present original state-of-the-art research articles that deal with the desirable properties of metasurfaces, including a large tunability, fast speed, small size, lightweight, ability to integrate, and compatibility of cost-effective fabrication processes. Researchers are invited to submit their contributions to this Special Issue. Topics include, but are not limited to:

 

  • Metasurfaces for the modulation of amplitude, frequency, and polarization;
  • Metasurfaces for the manipulation of wavefronts;
  • Tunable metasurface-based holograms;
  • Tuneable metasurface emitters and perfect absorbers;
  • Metasurface sensors;
  • Active metasurfaces/plasmonics;
  • Noval tuning mechanisms;
  • Applications in biological imaging and sensing;
  • Communication-related applications.

Dr. Jun-Yu Ou
Dr. Kenzo Yamaguchi
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

  • MEMS
  • NEMS
  • metasurface
  • metalens
  • metamaterial
  • structural reconfiguration

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Published Papers (3 papers)

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Research

11 pages, 3284 KiB  
Article
Perfect Solar Absorber Based on Four-Step Stacked Metamaterial
by Pu Wang, Ziang Gao, Zhengshan Xu and Tonggang Zhao
Photonics 2023, 10(10), 1082; https://doi.org/10.3390/photonics10101082 - 27 Sep 2023
Cited by 2 | Viewed by 1107
Abstract
Solar absorbers are of great significance in the development of new energy technologies. However, the current approaches are mostly complex and fail to achieve high absorption rates across a wide range of wavelengths. Here, we propose a four-step stacked metamaterial solar absorber that [...] Read more.
Solar absorbers are of great significance in the development of new energy technologies. However, the current approaches are mostly complex and fail to achieve high absorption rates across a wide range of wavelengths. Here, we propose a four-step stacked metamaterial solar absorber that achieves near-perfect absorption. Our four-step stacked absorber (FSSA) boasts an average absorption rate of 96.32% from 499 nm to 2348.3 nm, and a high average absorption rate of 94.96% from 300 nm to 2500 nm. Electromagnetic mode analysis and the impedance matching theory were employed to analyze the designed FSSA, which revealed that the high absorption rates are due to the propagating surface plasmon resonance (PSPR) and localized surface plasmon resonance (LSPR) modes. The FSSA offers broadband, high absorption rates, and high spectrum selectivity. Additionally, the structural parameters are adjusted to optimize the proposed perfect solar absorber. This proposed absorber can have promising applications in the renewable energy industry. Full article
(This article belongs to the Special Issue Nano/Micromechanical Metasurfaces and Active Metasurfaces/Plasmonics)
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8 pages, 2550 KiB  
Communication
All-Dielectric Dual-Band Metamaterial Absorber Based on Ring Nanocavity in Visible Region for Sensing Applications
by Fei Liu, Meiling Zou, Zhenjie Feng, Bo Ni, Baisong Ye and Yunji Wang
Photonics 2023, 10(1), 58; https://doi.org/10.3390/photonics10010058 - 5 Jan 2023
Cited by 6 | Viewed by 1954
Abstract
In this study, an all-dielectric metamaterial absorber consisting of a ring nanocavity array, a spacer layer, and a metallic substrate is designed and investigated. The simulation results show that the two perfect absorption peaks (99.91% and 99.96%) are achieved at 539 nm and [...] Read more.
In this study, an all-dielectric metamaterial absorber consisting of a ring nanocavity array, a spacer layer, and a metallic substrate is designed and investigated. The simulation results show that the two perfect absorption peaks (99.91% and 99.96%) are achieved at 539 nm and 673 nm. The two resonance modes caused by the different electric and magnetic field distributions of the ring nanocavity structure lead to different absorption and sensing properties. In addition, the influence of the structural parameters, such as the width of the nanocavity, on the sensing characteristics was studied and is presented here. A high sensitivity and narrow band result in a huge figure of merit when the proposed absorber is operated as a refractive index sensor. Full article
(This article belongs to the Special Issue Nano/Micromechanical Metasurfaces and Active Metasurfaces/Plasmonics)
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15 pages, 4403 KiB  
Article
A Graphene-Metasurface-Inspired Optical Sensor for the Heavy Metals Detection for Efficient and Rapid Water Treatment
by Abdulkarem H. M. Almawgani, Jaymit Surve, Tanvirjah Parmar, Ammar Armghan, Khaled Aliqab, Ghassan Ahmed Ali and Shobhit K. Patel
Photonics 2023, 10(1), 56; https://doi.org/10.3390/photonics10010056 - 4 Jan 2023
Cited by 26 | Viewed by 2663
Abstract
Heavy metal ion contamination of water supplies has significantly increased during the last century due to advances in industry and technology. Therefore, a lot of effort was put into developing chemical and physical methods for detecting and tracking the presence of these potentially [...] Read more.
Heavy metal ion contamination of water supplies has significantly increased during the last century due to advances in industry and technology. Therefore, a lot of effort was put into developing chemical and physical methods for detecting and tracking the presence of these potentially harmful solutions. Despite their comparatively high sensitivity and low detection limits, these methods are hindered by complex instrumentation and tedious, expensive, and difficult chemical processes. Therefore, in this study, we present a straightforward and effective sensing method based on the graphene metasurface for detecting several classes of heavy metal ions. A graphene-metasurface-inspired optical sensor with a glass substrate is developed that can detect Cu2+ and Mg2+ with a sensitivity of 113.92 GHz/RIU and 113.9 GHz/RIU, respectively. In addition to that, the linear fitting curve for both the metal ions is established, and R2 score of 0.9997 and 0.9982 is achieved, respectively. Furthermore, the lowest value of the figure of merit (FOM) of 2.98 RIU−1 and the maximum Quality factor (Q factor) of 11.22 is obtained. The proposed structure also exhibited a low detection limit as well as a resolution of 0.52 RIU and 78.14 THz, respectively. As a result of these findings, a simple and accurate tool for detecting water contamination with heavy metals and aqueous solutions with relatively high performance is developed. Full article
(This article belongs to the Special Issue Nano/Micromechanical Metasurfaces and Active Metasurfaces/Plasmonics)
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