Ultrasensitive sensing based on quasi-bound states in the continuum with terahertz metamaterial

被引：0
|
作者：
Wang, Xiaoran [1 ]
Qian, Zhengfang [1 ]
Fan, Shuting [1 ]
机构：
[1] Shenzhen Univ, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Coll Phys & Optoelect Engn, Shenzhen, Peoples R China
来源：
2024 49TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, IRMMW-THZ 2024 | 2024年
关键词：
Quasi-bound state in the continuum; Terahertz; Metamaterials;
D O I：
10.1109/IRMMW-THz60956.2024.10697795
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The exceptional resonances excited by quasi-bound states in the continuum (QBIC) offer great potential in high-sensitivity sensing applications. Here, we demonstrate a terahertz metamaterial sensor based on the excitation of high-quality QBIC resonances by introducing asymmetries in a metallic metamaterial structure. The resulting sensor features a quality (Q) factor up to 110.6 and a refractive index sensitivity up to 439 GHz/RIU.
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页数：2
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