A switchable and tunable multifunctional terahertz polarization converter based on a graphene metasurface
Xin Zhang, Guan Wang, Jia Liu, Shiyi Zuo, Meichen Li, Shuang Yang, Yang Jia, Yachen Gao
Abstract
linear polarization conversion within the frequency range of 4.23-7 THz, the transformation of linearly polarized waves into right-hand circularly polarized and left-hand circularly polarized waves. Moreover, at 3.873 THz, the metasurface can exhibit circular dichroism (CD) with a high CD value of 0.7. Based on the effect, a strategy to detect three representative avian influenza viruses was proposed and tested, which implies that the metasurface can be applied in biosensing.
Topics & Concepts
Terahertz radiationGraphenePolarization (electrochemistry)Materials scienceCircular polarizationOptoelectronicsMicrowaveLinear polarizationOpticsPhysicsNanotechnologyChemistryMicrostripQuantum mechanicsPhysical chemistryLaserMetamaterials and Metasurfaces ApplicationsAntenna Design and AnalysisMillimeter-Wave Propagation and Modeling