Journal
OPTICS COMMUNICATIONS
Volume 415, Issue -, Pages 194-201Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2018.01.051
Keywords
Tunable dual-band; Terahertz metamaterial absorber; Square graphene patch
Categories
Funding
- National Natural Science Foundation of China [61605147, U1435209]
- Natural Science Foundation of Hubei province [2017CFB588]
- Graduate Innovation Fund of Wuhan University of Science and Technology [JCX2016012]
Ask authors/readers for more resources
We present a wide-angle tunable dual-band terahertz (THz) metamaterial absorber (MMA) based on square graphene patch (SGP). This MMA is a simple periodic array, consisting of a dielectric substrate sandwiched with the SGP and a continuous metallic film. The designed MMA can achieve dual-band absorption by exciting fundamental and second higher-order resonance modes on SGP. The numerical simulations indicate that the absorption spectrum of the designed MMA is tuned from 0.85 THz to 1.01 THz, and from 2.84 THz to 3.37 THz when the chemical potential of the SGP is increasing from 0.4eV to 0.8eV. Moreover, it operates well in a wide-angle of the incident waves. The presented THz MMA based on the SGP could find some potential applications in optoelectronic related devices, such as sensor, emitter and wavelength selective radiators.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available