A bifunctional tunable terahertz absorber based on a Fabry–Perot cavity: enabling broadband perfect absorption and refractive index sensing
Jiaran Xiong, Chao Li, Dong Wang, Song Gao, Yue Che, Guozheng Wu, Mingyuan Guo
Abstract
A THz metamaterial absorber can realize broadband perfect absorption ( A > 99%, B = 3.14 THz) and RI sensing.
Topics & Concepts
Terahertz radiationMaterials scienceFabry–Pérot interferometerBroadbandOptoelectronicsMetamaterial absorberRefractive indexAbsorption (acoustics)MetamaterialResonatorOpticsTunable metamaterialsComposite materialPhysicsWavelengthMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface TechnologiesAntenna Design and Analysis