A Miniaturized Metasurface Sensor Using Spoof Electric Localized Surface Plasmons

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-10 DOI:10.1109/LAWP.2025.3587722

Ming-Ming Chen;Wen-Kang Wu;Qi Zheng;Zhen-Xing Xia;Xue-Xia Yang;Steven Gao

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Abstract

A miniaturized metasurface sensor with high sensitivity and polarization-insensitive characteristics based on electromagnetically induced transparency (EIT) is presented. The unit cell of the sensor consists of a spiral structure and a square metal frame, which generates the EIT. Experimental and calculated transmission spectra are in good agreement with the simulated results. Analysis of the electric field distributions, magnetic field distributions, and surface current distributions reveals that the EIT is primarily caused by spoof electric localized surface plasmons and electric dipole interactions, further supported by multipole scattering theory. The proposed sensor retains consistent sensitivity under oblique incidence conditions from 0° to 60° while maintaining polarization angle independence. The metasurface sensor achieves a measured sensitivity of 3.7 GHz/RIU, closely matching the simulated sensitivity of 4 GHz/RIU, highlighting its superior sensing performance. This work provides a novel approach for metasurface sensors and demonstrates significant potential for applications in detection.

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利用欺骗电局域表面等离子体的小型化超表面传感器

提出了一种基于电磁感应透明（EIT）的小型化、高灵敏度和极化不敏感特性的超表面传感器。传感器的单元格由螺旋结构和方形金属框架组成，产生EIT。实验和计算的透射光谱与模拟结果吻合较好。对电场分布、磁场分布和表面电流分布的分析表明，电激振效应主要是由欺骗的电局域表面等离子体和电偶极子相互作用引起的，并得到了多极散射理论的进一步支持。该传感器在0°至60°的斜入射条件下保持一致的灵敏度，同时保持偏振角无关性。该超表面传感器的测量灵敏度为3.7 GHz/RIU，与模拟灵敏度4 GHz/RIU非常接近，突出了其优越的传感性能。这项工作为超表面传感器提供了一种新的方法，并在检测中展示了巨大的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.