Title:Review on Terahertz Metamaterial Absorbers
Volume: 3
Issue: 2
Author(s): Haoduo Jia, Xin Tang, Ming Li, Dai Wu, Peng Li, Jianxin Wang, Xinghua Zhu and Dingyu Yang*
Affiliation:
- College of Optoelectronic Engineering, Chengdu University of Information Technology, Chengdu, 610225, China
Keywords:
Terahertz, metamaterial, multiband absorber, crossband absorber, water-based absorber, electromagnetic waves, tunability.
Abstract: Absorbers are devices that internally consume electromagnetic waves to partially or
completely attenuate them. The basic idea is to absorb electromagnetic radiation by resonating the
intended surface with the incident electromagnetic waves. This article focuses on the development
of the absorber (from single-band to multi-band, narrow to broadband, non-tunable to tunable, and
so on). The basic absorption principle of the current popular and excellent metamaterial graphene
absorber is provided, as is the theoretical explanation of impedance matching and how to attain critical
performance metrics like tunability, as well as prospects for terahertz (THz) absorber applications.
Finally, numerous innovative absorbers are shown as examples, providing new ideas for future
researchers.