Polarization-Independent Metasurface Lens Based on Binary Phase Fresnel Zone Plate
Xing Li, Jing Tang, Jonathan M. Baine
Abstract
Based on the binary phase Fresnel zone plate (FZP), a polarization-independent metasurface lens that is able to focus incident light with any polarization state, including circular, linear, and elliptical polarizations, has been proposed and investigated. We demonstrate that the metasurface lens consisting of metal subwavelength slits can operate in a wide bandwidth in the visible range, and has a higher focusing efficiency than that of an amplitude FZP lens without phase modulation. A multi-focus FZP metasurface lens has also been designed and investigated. The proposed lens can provide potential applications in integrated nanophotonic devices without polarization limitations.
Topics & Concepts
Zone plateOpticsPolarization (electrochemistry)Lens (geology)Fresnel zoneBinary numberPhysicsPhase modulationFresnel zone antennaNanophotonicsMaterials scienceOptoelectronicsDiffractionDirectional antennaTelecommunicationsPhase noiseSlot antennaComputer scienceMathematicsArithmeticChemistryAntenna (radio)Physical chemistryMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface TechnologiesPlasmonic and Surface Plasmon Research