A silicon-based metasurface for terahertz sensing

被引：15

作者：

Hu, Hui ^{[1
]}

Cui, Zijian ^{[1
]}

Yue, Lisha ^{[1
]}

Wang, Xinmei ^{[3
]}

Yang, Chen ^{[3
]}

Zhang, Kuang ^{[4
]}

Wang, Yue ^{[1
,2
]}

机构：

[1] Xian Univ Technol, Key Lab Ultrafast Photoelect Technol & Terahertz, Xian 710048, Peoples R China

[2] Harbin Univ Sci & Technol, Key Lab Engn Dielect & Its Applicat, Minist Educ, Harbin 150080, Peoples R China

[3] Xian Univ Technol, Sch Automat & Informat Engn, Xian 710048, Peoples R China

[4] Harbin Inst Technol, Dept Microwave Engn, Harbin 150001, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2022年 / 506卷

基金：

中国国家自然科学基金;

关键词：

Terahertz; Metasurface; Sensing; Benomyl; Tricyclazole; VIBRATIONAL SPECTROSCOPY; METAMATERIAL;

D O I：

10.1016/j.optcom.2021.127572

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With the rapid advances in terahertz technologies, the research on sensing applications implemented by terahertz metasurface has attracted significant attention. In this work, we experimentally demonstrated a silicon-based metasurface, which offers the capability for pesticide residue sensing. The spectral characteristics of the resonance peak at about 0.89 THz exhibit a good linear correlation with both benomyl and tricyclazole solutions concentrations. The correlation coefficient reaches 0.995 and 0.972, and the sensitivity is 0.0017 ppm(-1) and 0.0015 ppm(-1), respectively. In addition, the effects of analytes on spectra were analyzed by numerical simulation. These results provided a promising sensing platform for biochemical sensing application and feasible strategy to achieving rapid primary screening and quantitative analysis of the analyte.

引用

页数：5

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