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Dual‐band terahertz metamaterial absorber using hexagon graphene structure
Author(s) -
Lu Zhonghao,
Yang YongGang,
Huang JianLin
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32816
Subject(s) - terahertz radiation , metamaterial , metamaterial absorber , graphene , materials science , multi band device , optoelectronics , fermi energy , absorption (acoustics) , fermi level , optics , frequency band , tunable metamaterials , bandwidth (computing) , physics , nanotechnology , telecommunications , computer science , composite material , quantum mechanics , antenna (radio) , electron
A dual‐band terahertz metamaterial absorber using one‐layer periodically patterned hexagon graphene structure is proposed. By periodically loading six graphene stubs to the honeycomb hexagon graphene structure without increase of the overall size, a new high‐frequency absorption peak will be obtained to realize a dual‐band frequency response. By tuning the structural parameters or Fermi energy levels of the presented terahertz metamaterial absorber, both of the two absorption bands will be changed to the required working frequencies for design specifications. Moreover, the proposed terahertz metamaterial absorber has the properties of polarization independence and incident angle insensitivity, which are of great significance in the applications of some detecting and sensing systems. This work will be a good candidate for the design guidance of various metamaterial absorbers using graphene with single or dual absorption bands.