Silver nanoparticles-integrated terahertz metasurface for enhancing sensor sensitivity

被引：16

作者：

Mu, Tonglin ^{[1
]}

Ye, Yunxia ^{[1
,2
]}

Dai, Zijie ^{[1
]}

Zhao, Rui ^{[1
]}

Yang, Maosheng ^{[3
]}

Ren, Xudong ^{[1
,2
]}

机构：

[1] Jiangsu Univ, Inst Micronano Optoelect & Terahertz Technol, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[3] West Anhui Univ, Sch Elect & Optoelect Engn, Luan 237012, Anhui, Peoples R China

来源：

OPTICS EXPRESS | 2022年 / 30卷 / 23期

关键词：

IDENTIFICATION;

D O I：

10.1364/OE.472520

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

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.

引用

页码：41101 / 41109

页数：9

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