Surface Plasmon Resonance in Optical Sensing

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Lasers, Light Sources and Sensors".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 1432

Special Issue Editor


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Guest Editor
School of Physics, Dalian University of Technology, Dalian, China
Interests: plasmon resonance sensing technology; optical fiber sensing technology; micro and nano structure design and processing; biochemical molecular detection

Special Issue Information

Dear Colleagues,

Surface plasmon resonance (SPR) is a powerful optical phenomenon that has revolutionized the field of sensing. It involves the interaction between light and free electrons at the interface between a metal and dielectric material, resulting in enhanced sensitivity and real-time monitoring capabilities. There are numerous theoretical models and simulations that aid in understanding SPR physics; on the other hand, new signal analysis techniques are utilized to enhance its detection limits. SPR is applied in several fields, including biomedical sciences, environmental monitoring, and chemical analysis, because of its efficiency. For instance, SPR biosensors enable label-free detection of proteins, DNA, and pollutants, making them suitable for point-of-care diagnostics and on-site monitoring.

This Special Issue aims to explore the recent advancements in SPR technology, covering sensor design, materials, theoretical models, signal analysis techniques, and applications. It will focus on designing SPR-based sensing platforms with enhanced sensitivity and selectivity and highlight the importance of optimizing plasmonic nanostructures and materials for improved sensor performance. We hope to provide a valuable resource for researchers and scientists in optical sensing and nanotechnology. Potential contribution topics include, but are not limited to, the aforementioned applications.

Dr. Mengdi Lu
Guest Editor

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Keywords

  • surface plasmon resonance;
  • localized surface plasmon resonance;
  • nanostructure;
  • functional material;
  • optical sensing;
  • biosensor

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Published Papers (1 paper)

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Research

15 pages, 2547 KiB  
Article
Design and Optimization of Silver Nanostructured Arrays in Plasmonic Metamaterials for Sensitive Imaging Applications
by Koichi Okamoto, Daisuke Tanaka, Tetsuya Matsuyama, Kenji Wada, Yusuke Arima and Kaoru Tamada
Photonics 2024, 11(4), 292; https://doi.org/10.3390/photonics11040292 - 24 Mar 2024
Cited by 1 | Viewed by 1212
Abstract
This paper delves into the strategic design and optimization of silver (Ag) nanostructured arrays within plasmonic metamaterials, targeting the enhancement of imaging sensitivity. Leveraging Finite-Difference Time-Domain (FDTD) simulations, our research rigorously compares various Ag nanostructured geometries, including nanospheres, nanocones, nanodisks, and nanocubes. The [...] Read more.
This paper delves into the strategic design and optimization of silver (Ag) nanostructured arrays within plasmonic metamaterials, targeting the enhancement of imaging sensitivity. Leveraging Finite-Difference Time-Domain (FDTD) simulations, our research rigorously compares various Ag nanostructured geometries, including nanospheres, nanocones, nanodisks, and nanocubes. The aim is to pinpoint configurations that significantly enhance electric field localization on the surfaces of nanostructures, a pivotal factor. The nanocube array exhibits superior field enhancement, particularly in narrow nanogaps, suggesting its suitability for high-sensitivity applications. Further exploration into nanocube arrays reveals the crucial role of nanogap size and spacer layer thickness in tuning the optical properties through the manipulation of Fabry–Pérot and mirror image modes in metal–insulator–metal (MIM) structures. By presenting a thorough analysis of these nanostructured arrays, the study not only contributes to our understanding of the fundamental principles governing plasmonic metamaterials but also provides a solid foundation for future innovation in highly sensitive imaging applications. It underscores the importance of nanostructure design and optimization in achieving significant improvements in the performance of plasmonic devices, marking a pivotal step forward in the field of nanophotonics and its application to sensitive imaging technologies. Full article
(This article belongs to the Special Issue Surface Plasmon Resonance in Optical Sensing)
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