Broadband tunable metasurface absorbing device in the terahertz band based on single-layer graphene
Yangtze University · Joint Laboratory for Extreme Conditions Matter Properties · +2 more institutions
Abstract
A tunable terahertz broadband absorber using rectangular and L-shaped coupling is designed. The designed terahertz absorber is a classically three-layer construction with a gold foil as the bottom. The structure mainly consists of an electrically tunable graphene material in the top layer, a dielectric constant SiO 2 with [Formula: see text], a middle sandwich, as well as gold flakes on the bottom layer. The absorption response is realized within the region of 2.81–6.50[Formula: see text]THz with more than 99.9% absorption, and the excellent absorption is obtained at [Formula: see text] [Formula: see text]THz and [Formula: see text] [Formula: see text]THz. The impedance of the receiver is calculated through…
Citation impact
- FWCI
- 18.93
- Percentile
- 100%
- References
- 76
Authors
6- ZJZhongyang JinCorresponding
Yangtze University, Joint Laboratory for Extreme Conditions Matter Properties
- MLMengsi Liu
Yangtze University
- SCShubo Cheng
Yangtze University
- ZYZao Yi
Yangtze University, Joint Laboratory for Extreme Conditions Matter Properties
- JWJunqiao Wang
Zhengzhou University
Topics & keywords
- Terahertz radiation
- Graphene
- Absorption (acoustics)
- Broadband
- Metamaterial absorber
- Dielectric
- Fermi energy
- Impedance matching