Impact of resonator geometry and its coupling with ground plane on ultrathin metamaterial perfect absorbers
By Li Huang, D. R. Chowdhury, S. Ramani, M. Reiten, S. Luo, Abul Kalam Azad, A. Taylor, Houtong Chen. 2012
193 citations recorded by the source corpus.
We investigate the impact of resonator geometry and its coupling with ground plane on the performance of metamaterial perfect absorbers. Using a cross-resonator as an example structure, we find that the absorber thickness can be further reduced through modifying the geometric dimensions of the resonators. Numerical simulations and theoretical calculations reveal that destructive interference of multiple reflections is responsible for the near-unity absorption. The near-field coupling between the resonator array and ground plane can be significant. When this coupling is taken into account, the theoretical results calculated using the interference model are in excellent agreement with experiments and numerical simulations.
Subfields: Aerospace Engineering, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/defabb13dd2db053ffc059442f324dff3feb6657
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In Aerospace Engineering
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Design of a Four-Band and Polarization-Insensitive Terahertz Metamaterial Absorber (2015, background): “Since then, metamaterial-based perfect absorbers have received considerable attention, and a great number of absorbers have been proposed [10]–[13].”
- Metamaterial-based perfect absorbers (2014, background): “The interaction between incident EM wave and MMs can be due to multiple reactions [55] and near-field coupling [54] between patterned and continuous metal layers.”