Three-band perfect absorber with high refractive index sensing based on an active tunable Dirac semimetal
Zhiyou Li, Zao Yi, Tinting Liu, Li Liu, Xifang Chen, Fusheng Zheng, Jianguo Zhang, Hailiang Li, Pinghui Wu, Peiguang Yan
Abstract
and a highest quality factor (FOM) of 4.26 in the refractive index range of 1 to 1.8. The maximum adjustable range is 0.06 THz in the Fermi energy range of 60 to 140 meV. Because of its excellent characteristics, our absorber will have good development prospects in the fields of optical switching, biochemical imaging, and space detection.
Topics & Concepts
Refractive indexSemimetalTerahertz radiationBandwidth (computing)OptoelectronicsMaterials scienceFermi levelSensitivity (control systems)Dirac (video compression format)Quality (philosophy)OpticsPhysicsBand gapTelecommunicationsQuantum mechanicsElectronic engineeringEngineeringComputer scienceElectronNeutrinoMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface TechnologiesPlasmonic and Surface Plasmon Research