▎ 摘　　要

NOVELTY - The component has a main component that is provided with a transition-metal dichalcogenide (TMD) thin film layer (3) and a graphene thin film layer (4) from bottom to top, and the graphene thin film layer covers the TMD thin film layer to form a graphene/TMD heterojunction. A fixed Fermi energy is provided in the graphene film layer. A periodic nanostructure which is provided with a graphene/TMD heterojunction is formed between the graphene thin film layer providing the Fermi energy and the TMD thin film layer. USE - Graphene plasmonic component for all-optical modulation. ADVANTAGE - The plasmonic component realizes the modulation of graphene plasmon infrared signal through visible light. It is a novel all-optical modulation polarimetric device, including applications in optical waveguide devices, photodetectors and optical memory storage devices. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene plasmonic components for all-optical modulation. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the graphene plasmonic component for all-optical modulation. Transition-metal dichalcogenide thin film layer (3) Graphene thin film layer (4)