▎ 摘　　要

NOVELTY - The absorber has a top mirror (1), a bottom mirror (2), and a triple nested fabry-perot (FP) resonant cavity between the top mirror and the bottom mirror. The specific structure of the triple nested FP resonant cavity is graphene monolayer (3). A first layer cavity (4) is attached to the upper and lower surfaces of the graphene monolayer. A second layer cavity (5) is attached to the outer surface of the first layer cavity and is attached to the second layer cavity. The third layer of cavities is provided on the external surface (6). USE - Adjustable perfect absorber based on graphene photonic crystal structure. ADVANTAGE - The absorber can adjust the resonance frequency of the perfect absorption mode by changing the graphene chemical potential and the angle of the incident wave without changing the geometric structure of the absorber. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the adjustable perfect absorber based on graphene photonic crystal structure. Top mirror (1) Bottom mirror (2) Graphene monolayer (3) First layer cavity (4) Second layer cavity (5) External surface (6)