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Updated: Dec 23, 2025
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
An ultra-broadband terahertz metamaterial coherent absorber using multilayer electric ring resonator structures based
Chao Du1, Di Zhou, Huan-Huan Guo
1Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China. zhoudi1220@gmail.com.
Abstract:
We propose a method for achieving THz ultra-broadband coherent absorption using the anti-reflection theory of metamaterials. The metamaterial absorber consists of a periodic array of electric ring resonators with a multilayered structure which form the desired refractive index dispersion and provide continuous anti-reflection over a wide frequency range. The destructive interference mechanism and resonance absorption of the absorber are determined by simulation analysis and numerical simulation. Simulation results show that the absorption bandwidth is almost 8.02 THz (absorption rate >90%) over the entire terahertz band (0.1 THz-10 THz). This design provides an effective and viable method for constructing broadband absorbers for stealth technology and the construction of enhanced transmittance devices.
