▎ 摘　　要

NOVELTY - The utility model claims a graphene-based optical polarization converter, comprising a plurality of polarization unit, the upper surface of each said polarization unit are located on the same horizontal plane, the lower surface of each said polarization unit are located on the same horizontal plane; each said polarization unit comprises a graphene layer arranged in turn, the selenide medium layer and the gold layer of the bottom layer, the graphene layer of each of the polarization unit is provided with a plurality of punching, the graphene layer of each said polarization unit are provided with a bi-elliptical air ring; This utility model through the graphene layer provided with double oval air ring can make the incident light striking on the surface of the graphene material capable of reflecting the incident light is polarized light of 0~90 degree polarization angle, and can be adjusted by adjusting the chemical potential energy of graphene to polarization angle and polarization conversion for adjusting polarized light, the incident light is limited in the space of nanometer level, breaks through the problem of the diffraction limit.