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Enhancing Light-Matter Interaction by Metastructures for Sensing Applications
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Enhancing Light-Matter Interaction by Metastructures for Sensing Applications

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Optical Sensors".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 17417

Special Issue Editor

Prof. Dr. Jinfeng Zhu

E-Mail Website
Guest Editor
Institute of Electromagnetics and Acoustics, School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China
Interests: plasmonic sensing; terahertz sensing; plasmonics and metamaterials

Special Issue Information

Dear Colleagues,

In the past few years, there have been considerable advances in the fundamental and application studies of metamaterials and plasmonics. They demonstrate great advantages in optical sensors for the detection of biomolecules, chemicals, gases, and so on. The use of artificially engineered nanostructures or microstructures (i.e., metastructures) plays a critical role in manipulating the optical field in order to enhance light–matter interaction for sensing. To date, a large variety of high-performance functional sensors based on metamaterials and plasmonics have been proposed and investigated. We thus think this is a timely opportunity for the metamaterials and plasmonics community to bring together recent scientific and technology-based discoveries in this Special Issue, which focuses on the sensing physics and applications of metastructures.

Prof. Dr. Jinfeng Zhu
Guest Editor

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 2600 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

  • plasmonics
  • metamaterials and metasurfaces
  • metastructures
  • 2D material-based metamaterials
  • light-matter interaction
  • refractive index sensors
  • immunosensors
  • biomarkers
  • theoretical and simulation studies

Published Papers (4 papers)

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Research

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13 pages, 8864 KiB  
Communication
Compact Slot Microring Resonator for Sensitive and Label-Free Optical Sensing
by Bingyao Shi, Xiao Chen, Yuanyuan Cai, Shuai Zhang, Tao Wang and Yiquan Wang
Sensors 2022, 22(17), 6467; https://doi.org/10.3390/s22176467 - 27 Aug 2022
Cited by 14 | Viewed by 3259
Abstract
A novel all-pass slot microring resonator (SMRR), intended for label-free optical biosensing based on silicon-on-insulator platforms, is proposed. The sensor consists of a bent asymmetric directional coupler and an asymmetric-slot microring waveguide. The appropriate slot width of 140 nm is identified by the [...] Read more.
A novel all-pass slot microring resonator (SMRR), intended for label-free optical biosensing based on silicon-on-insulator platforms, is proposed. The sensor consists of a bent asymmetric directional coupler and an asymmetric-slot microring waveguide. The appropriate slot width of 140 nm is identified by the three-dimensional finite-difference time-domain (3D-FDTD) method for better light–matter interaction in applications. According to numerical calculations, the SMRR sensor with a footprint of 10 µm × 10 µm has a concentration sensitivity of 725.71 pm/% for sodium chloride (NaCl) solutions. The corresponding refractive index sensitivity is 403 nm/RIU (refractive index unit), which is approximately six times greater than that of traditional microring resonator sensors. A low detection limit of 0.129% is also achieved. This SMRR is an excellent candidate for label-free optical biosensors due to its compact structure and excellent sensing capability. Full article
(This article belongs to the Special Issue Enhancing Light-Matter Interaction by Metastructures for Sensing Applications)
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12 pages, 2856 KiB  
Communication
Simultaneous Measurements of Refractive Index and Methane Concentration through Electromagnetic Fano Resonance Coupling in All-Dielectric Metasurface
by Hai Liu, Xu Zhang, Benlei Zhao, Bo Wu, Hancheng Zhang and Shoufeng Tang
Sensors 2021, 21(11), 3612; https://doi.org/10.3390/s21113612 - 22 May 2021
Cited by 6 | Viewed by 2510
Abstract
Dual-parameter measurements of refractive index and methane concentration based on electromagnetic Fano resonance are proposed. Two independent Fano resonances can be produced through electric dipole and toroidal dipole resonance in an all-dielectric metasurface separately. The linear relationship between the spectral peak-shifts and the [...] Read more.
Dual-parameter measurements of refractive index and methane concentration based on electromagnetic Fano resonance are proposed. Two independent Fano resonances can be produced through electric dipole and toroidal dipole resonance in an all-dielectric metasurface separately. The linear relationship between the spectral peak-shifts and the parameters to be measured will be obtained directly. The refractive index (RI) sensitivity and gas sensitivity are 1305.6 nm/refractive index unit (RIU), −0.295 nm/% for one resonance peak (dip1), and 456.6 nm/RIU, −0.61 nm/% for another resonance peak (dip2). Such a metasurface has simpler structure and higher sensitivity, which is beneficial for environmental gas monitoring or multi-parameter measurements. Full article
(This article belongs to the Special Issue Enhancing Light-Matter Interaction by Metastructures for Sensing Applications)
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Review

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19 pages, 2499 KiB  
Review
Plasmonic Metasurfaces for Medical Diagnosis Applications: A Review
by Zhenbiao Wang, Junjie Chen, Sayed Ali Khan, Fajun Li, Jiaqing Shen, Qilin Duan, Xueying Liu and Jinfeng Zhu
Sensors 2022, 22(1), 133; https://doi.org/10.3390/s22010133 - 25 Dec 2021
Cited by 33 | Viewed by 5933
Abstract
Plasmonic metasurfaces have been widely used in biosensing to improve the interaction between light and biomolecules through the effects of near-field confinement. When paired with biofunctionalization, plasmonic metasurface sensing is considered as a viable strategy for improving biomarker detection technologies. In this review, [...] Read more.
Plasmonic metasurfaces have been widely used in biosensing to improve the interaction between light and biomolecules through the effects of near-field confinement. When paired with biofunctionalization, plasmonic metasurface sensing is considered as a viable strategy for improving biomarker detection technologies. In this review, we enumerate the fundamental mechanism of plasmonic metasurfaces sensing and present their detection in human tumors and COVID-19. The advantages of rapid sampling, streamlined processes, high sensitivity, and easy accessibility are highlighted compared with traditional detection techniques. This review is looking forward to assisting scientists in advancing research and developing a new generation of multifunctional biosensors. Full article
(This article belongs to the Special Issue Enhancing Light-Matter Interaction by Metastructures for Sensing Applications)
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24 pages, 4483 KiB  
Review
Recent Progress in the Development of Graphene Detector for Terahertz Detection
by Jianlong Liu, Xin Li, Ruirui Jiang, Kaiqiang Yang, Jing Zhao, Sayed Ali Khan, Jiancheng He, Peizhong Liu, Jinfeng Zhu and Baoqing Zeng
Sensors 2021, 21(15), 4987; https://doi.org/10.3390/s21154987 - 22 Jul 2021
Cited by 13 | Viewed by 4985
Abstract
Terahertz waves are expected to be used in next-generation communications, detection, and other fields due to their unique characteristics. As a basic part of the terahertz application system, the terahertz detector plays a key role in terahertz technology. Due to the two-dimensional structure, [...] Read more.
Terahertz waves are expected to be used in next-generation communications, detection, and other fields due to their unique characteristics. As a basic part of the terahertz application system, the terahertz detector plays a key role in terahertz technology. Due to the two-dimensional structure, graphene has unique characteristics features, such as exceptionally high electron mobility, zero band-gap, and frequency-independent spectral absorption, particularly in the terahertz region, making it a suitable material for terahertz detectors. In this review, the recent progress of graphene terahertz detectors related to photovoltaic effect (PV), photothermoelectric effect (PTE), bolometric effect, and plasma wave resonance are introduced and discussed. Full article
(This article belongs to the Special Issue Enhancing Light-Matter Interaction by Metastructures for Sensing Applications)
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