太赫兹辐射
灵敏度(控制系统)
材料科学
银纳米粒子
电场
光电子学
光学
纳米颗粒
纳米技术
物理
电子工程
量子力学
工程类
作者
Tonglin Mu,Yunxia Ye,Zijie Dai,Rui Zhao,Maosheng Yang,Xudong Ren
出处
期刊:Optics Express
[The Optical Society]
日期:2022-10-04
卷期号:30 (23): 41101-41101
被引量:10
摘要
A silver nanoparticles (AgNPs)-integrated terahertz (THz) metasurface sensor was presented and applied to enhance the sensitivity of substance detection. Simulations and experiments were conducted to study the influence of AgNPs on the sensor performance. The enhancement of the local electric field excited by AgNPs can substantially strengthen the interaction between the THz waves and analytes, thereby increasing detection sensitivity. The experimental results indicate that the detection limit of the AgNPs-integrated metasurface sensor is improved by two orders of magnitude compared to that of the bare metasurface sensor without AgNPs. This study provides a convenient method to enhance the sensitivity of THz metasurface sensors.
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