Flexible manipulation and efficient detection of terahertz wave polarization states remain critical challenges for advancing terahertz technologies in communications,biomedicine,and environmental monitoring.This study...Flexible manipulation and efficient detection of terahertz wave polarization states remain critical challenges for advancing terahertz technologies in communications,biomedicine,and environmental monitoring.This study innovatively proposes an all-dielectric metadevice integrated platform that achieves coordinated polarization gen-eration and detection through multidimensional polarization-channel multiplexing.The proposed device inte-grates four polarization-conversion functional units into a single planar architecture,enabling synchronous generation of four independent polarization channels under unpolarized incidence while establishing direct cor-relations between their intensity profiles and the polarization state of incident waves.Leveraging the Stokes parameter framework,we develop a high-efficiency detection mechanism that precisely reconstructs incident polarization states utilizing only four-channel intensity information,overcoming the limitations of conventional multi-component cascaded polarization detection systems.Experimental results demonstrate the device's excep-tional polarization-resolving capability at 0.9 THz.Furthermore,the platform exhibits significant potential for multidimensional optical field manipulation,successfully generating four-channel polarization-vortex beams with independent topological charges.This compact multichannel polarization-control strategy opens new ave-nues,to our knowledge,for developing portable terahertz imaging systems,high-capacity communication devices,and multidimensional information encryption technologies,thereby accelerating the practical implementation of terahertz science and applications.展开更多
基金High-Level Talent Fund of Jiangsu University(JDKQ20250401)Sichuan Science and Technology Program(2025ZNSFSC0847)+1 种基金China Postdoctoral Science Foundation(2023TQ0296)Postdoctoral Fellowship Program of CPSF(GZC20232389).
文摘Flexible manipulation and efficient detection of terahertz wave polarization states remain critical challenges for advancing terahertz technologies in communications,biomedicine,and environmental monitoring.This study innovatively proposes an all-dielectric metadevice integrated platform that achieves coordinated polarization gen-eration and detection through multidimensional polarization-channel multiplexing.The proposed device inte-grates four polarization-conversion functional units into a single planar architecture,enabling synchronous generation of four independent polarization channels under unpolarized incidence while establishing direct cor-relations between their intensity profiles and the polarization state of incident waves.Leveraging the Stokes parameter framework,we develop a high-efficiency detection mechanism that precisely reconstructs incident polarization states utilizing only four-channel intensity information,overcoming the limitations of conventional multi-component cascaded polarization detection systems.Experimental results demonstrate the device's excep-tional polarization-resolving capability at 0.9 THz.Furthermore,the platform exhibits significant potential for multidimensional optical field manipulation,successfully generating four-channel polarization-vortex beams with independent topological charges.This compact multichannel polarization-control strategy opens new ave-nues,to our knowledge,for developing portable terahertz imaging systems,high-capacity communication devices,and multidimensional information encryption technologies,thereby accelerating the practical implementation of terahertz science and applications.
