Terahertz stepped wideband absorber based on graphene metamaterials
Source abstract
Abstract
A stepped graphene metamaterial terahertz absorber is proposed to achieve wideband absorption characteristics. By etching the rectangular groove on the surface of graphene and dynamically adjusting the length and the width of the rectangular groove, we improved the absorptivity up to 0.9475 and obtained a broadband absorption band of 5.885 THz. In addition, the absorber has the characteristics of electrical tunability, polarization independence, and large angle absorption, which improve the utilization of light waves. The graphene metamaterial absorbers proposed in this paper have potential applications in the fields of stealth and photoelectric conversion.
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Research context
OpenAlex topics: Metamaterials and Metasurfaces Applications · Advanced Antenna and Metasurface Technologies · Antenna Design and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Optoelectronics and Electromagnetics Information, School of Information Science and Engineering, Lanzhou University , No. 222, Tianshui South Road, Lanzhou, Gansu Province 730000, People’s Republic of China
Funding
National Natural Science Foundation of China
References (21)
Show source-provided references
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