▎ 摘　　要

NOVELTY - The modulator has a first dielectric layer (1-1,1-2), a second dielectric layer (2) and a substrate (3) connected with each other from up to down. The first dielectric layers are provided with a third dielectric layer (4-1) and a third dielectric layer (4-2) to form a dielectric slit waveguide. The first dielectric layers are provided with a first graphene layer (5-1) and a second graphene layer (5-2).A fifth medium layer (6) is arranged between the first graphene layer and the second graphene layer, where the first dielectric layers, the second dielectric layer, the fifth dielectric layer, the third dielectric layer, the third dielectric layer and the substrate are made of an insulating material that is selected as boron nitride, silicon dioxide. USE - Graphene-based terahertz slit electromagnetic waveguide modulator. ADVANTAGE - The modulator places the graphene in the waveguide layer slit center, ensures the terahertz wave between the slits of the waveguide has strong constraint enhancing ability, improves the interaction of the device terahertz wave and graphene, applies the bias layer applies bias to change the chemical potential of the graphene to change the conductivity of the graphene, so as to change the propagation loss and propagation distance of the waveguide, and realizes the adjusting effect of the electromagnetic wave modulation depth. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a graphene-based terahertz slit electromagnetic waveguide modulator. 1-1First dielectric layer 1-2First dielectric layer 2Second dielectric layer 3Substrate 4-1Third dielectric layer 4-2Third dielectric layer 5-1First graphene layer 5-2Second graphene layer 6Fifth dielectric layer