▎ 摘　　要

NOVELTY - The device has a sapphire layer (7) formed on a silicon substrate (6). The sapphire layer is arranged on a first graphene resonant cavity (4) and a second graphene resonant cavity (5). A first graphene nanometer strip waveguide (1) is coupled to the first graphene resonant cavity. The first graphene resonant cavity is connected with the graphene resonant cavity. A third graphene nanometer strip waveguide (3) is directly coupled to the second graphene resonant cavity. The first graphene nanometer strip waveguide, a second graphene nanometer strip waveguide (2) and the third graphene nanometer strip waveguide are orderly arranged with a straight line. The first graphene resonant cavity and the second graphene resonant cavity are located on same side of the straight line. USE - Graphene nanometer strip waveguide coupled resonator based logic AND gate device. ADVANTAGE - The device realizes logic and AND gate function, and has characteristics of small size, high extinction ratio and ultra-fast. DESCRIPTION OF DRAWING(S) - The drawing shows a side perspective view of a graphene nanometer strip waveguide coupled resonator based logic and gate device. Graphene nanometer strip waveguides (1,2,3) Graphene resonant cavities (4,5) Silicon substrate (6) Sapphire layer (7)