Research Teams Offer New Insight into Mid-IR, Graphene-Based Metasurfaces

A team of researchers has described a method of designing metamolecules that incorporate two independently controllable subwavelength meta-atoms. This two-parametric control of the metamolecule secures the complete control of both amplitude and the phase of light. A Korea Advanced Institute of Science and Technology (KAIST) research team in collaboration with the University of Wisconsin-Madison theoretically suggested a graphene-based active metasurface capable of independent amplitude and phase control of mid-infrared light. The research provides new insight into modulating the mid-infrared wavefront with high resolution by solving the problem of the independent control of light amplitude and phase, which has remained a...