▎ 摘　　要

NOVELTY - The terahertz absorber has a second metal ring (9) which is formed with outer diameter of 2 mu m and an inner diameter of 1.5 mu m. A spacing between a first graphene ribbons (10) is 2 mu m. The first graphene ribbon is comprised of a width of 0.6 mu m, and a thickness of 0.2 nm. The spacing between a second graphene ribbons (11) is maintained at 2 mu m. The second graphene ribbon is comprised of a width of 0.6 mu m, and the thickness of 0.2 nm. A first dielectric layer (2) is made of silicon dioxide, and is formed with a thickness of 43 mu m. A second dielectric layer (6) is made of silicon dioxide, and having a thickness of 41.5 mu . The thickness of a first aluminum oxide layer (4) and a second aluminum oxide layer (7) are both 0.05 mu . The thickness of a first graphene layer (3) and a second graphene layer (5) is 0.2 nm. USE - Graphene metamaterial-based terahertz absorber. ADVANTAGE - The absorber not only has multiple absorption peaks in the terahertz band, but also can realize switching and adjustment of the absorption peaks, and has adjustable characteristics. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of graphene metamaterial-based terahertz absorber. First dielectric layer (2) First graphene layer (3) Second graphene layer (4) Second dielectric layer (6) Second aluminum oxide layer (7) Second metal ring (9) First graphene ribbons (10) Second graphene ribbons (11)