▎ 摘　　要

NOVELTY - The device has a reflection layer i.e. metal reflecting layer, a graphene micro-nano structure layer and a dielectric layer arranged on a substrate. The graphene micro-nano structure layer is provided with a graphene dispersion unit and a graphene combining unit that are identically arranged with each other. The graphene dispersion unit is formed as a rectangle-shaped structure or an oval-shaped structure. A terahertz wave plane is converged with a reflecting array device. The graphene combining unit is arranged with an array. USE - Two-dimensional graphene meta-material based functional device i.e. terahertz wave splitter (claimed). ADVANTAGE - The device maintains uniform Fermi level of the graphene dispersion unit by using a single electrode so as to control resonance frequency of the graphene dispersion unit, so that high mobility characteristic of graphene can be determined, thus achieving dynamic regulation of transmission of incident light. The device adopts two-dimensional graphene meta-material so as to generate large intensity phase-shifted reflected light, so that light conversion efficiency can be improved. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a two-dimensional graphene meta-material based functional device.