A
graphene multi-resonant structure-based polarization
wideband-independent terahertz wave absorber relates to a terahertz wave absorber. The
graphene multi-resonant structure-based polarization
wideband-independent terahertz wave absorber comprises a five-layer structure, wherein the five-layer structure is sequentially a periodic
graphene multi-resonant mesh-shaped structural layer, an upper
dielectric layer, a bias layer, a lower
dielectric layer and a
metal layer from top to bottom, horizontal period and a longitudinal period of a
unit structure of the periodic graphene multi-resonant mesh-shaped structural layer both are in square shapes, the graphene multi-resonant structure comprises square graphene, a one fourth round disc and a rectangular strip, the square graphene is formed by connecting middle points of four edges of a periodic
square shape, the one fourth round disc has
radius of four corners of the periodic
square shape, and the rectangular strip has width on four edges of the periodic
square shape. The graphene multi-resonant structure-based polarization
wideband-independent terahertz wave absorber is simple in structure, universality and can be used for absorbing anelectromagnetic wave of an intermediate
infrared band, a
far infrared band, visible light or other bands by scale conversion.