Tunable dual-band perfect metamaterial absorber based on a graphene-SiC hybrid system by multiple resonance modes

2018 ◽  
Vol 52 (1) ◽  
pp. 015104 ◽  
Author(s):  
Ye Ming Qing ◽  
Hui Feng Ma ◽  
Shang Yu ◽  
Tie Jun Cui
Keyword(s):  
Hybrid System ◽  
Metamaterial Absorber ◽  
Dual Band ◽  
Multiple Resonance ◽  
Resonance Modes ◽  
Perfect Metamaterial Absorber

scholarly journals Dual-band tunable perfect metamaterial absorber in the THz range

2016 ◽  
Vol 24 (2) ◽  
pp. 1518 ◽  
Author(s):  
Gang Yao ◽  
Furi Ling ◽  
Jin Yue ◽  
Chunya Luo ◽  
Jie Ji ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Perfect Metamaterial Absorber ◽  
Thz Range

A single-patterned five-band terahertz metamaterial absorber based on multiple resonance mechanisms

2018 ◽  
Vol 32 (03) ◽  
pp. 1850029 ◽  
Author(s):  
Zong-De Ju ◽  
Guo-Qing Xu ◽  
Zhi-Hua Wei ◽  
Jing Li ◽  
Qian Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Imaging System ◽  
Metamaterial Absorber ◽  
Polarization Angle ◽  
Absorption Mechanism ◽  
Perfect Absorption ◽  
Simple Method ◽  
Multiple Resonance ◽  
Resonance Modes ◽  
Single Pattern

A single-patterned five-band terahertz metamaterial absorber based on simple metal–dielectric–metal sandwich structure is investigated and demonstrated. The numerical simulations reveal the different dependence of the absorption ability on the incident polarization angle, dielectric layer, and structural dimensions of the single pattern. The extracted electric field distribution indicates that the five-band near-perfect absorption performance (average over 98%) mainly originates from the combination of LC, dipole, quadrupole, and high-order resonance. The researches on magnetic field and power loss density distributions further reveal the absorption mechanism. Moreover, additional resonance mode can be excited to form a six-band high-performance absorber only by adjusting some geometric dimensions of the single pattern with multiple resonance modes. The simple method provides us a very good idea to implement a super multi-band absorber. The proposed absorbers here can be applied in massive related fields, such as metamaterial sensors, thermal radiation, and imaging system.

scholarly journals Two-layered Dual-band Perfect Metamaterial Absorber at K band Frequency

2018 ◽  
Vol 7 (2) ◽  
pp. 25-27
Author(s):  
M. C. Tran ◽  
T. T. H. Phuong
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Material Structure ◽  
Perfect Absorption ◽  
Band Frequency ◽  
Absorption Frequency ◽  
Dielectric Layers ◽  
Absorber Structure ◽  
Perfect Metamaterial Absorber ◽  
K Band

This paper presents a study of a novel absorber structure based on two-dielectric-layers, two perfect absorption frequency bands at K band (f1 = 26.5 GHz and f2 = 28.6 GHz) go under observance. The study of the dependence of absorption and frequency on relative distance between the layers of material and the material structure parameters are discussed. 

scholarly journals Comment on “Dual-Band Perfect Metamaterial Absorber Based on an Asymmetric H-Shaped Structure for Terahertz Waves [Materials] (2018) [2193; https://doi.org/10.3390/ma11112193]”

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3914
Author(s):  
Fahad Ahmed ◽  
Afzal Ahmed ◽  
Tania Tamoor ◽  
Tayyab Hassan
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Terahertz Waves ◽  
Perfect Metamaterial Absorber

In a recent publication, Lu et al [...]

Dual-band tunable perfect metamaterial absorber based on graphene

2018 ◽  
Vol 57 (24) ◽  
pp. 6916 ◽  
Author(s):  
Fengling Wang ◽  
Sha Huang ◽  
Ling Li ◽  
Weidong Chen ◽  
Zhengwei Xie
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Perfect Metamaterial Absorber

scholarly journals Dual-Band Perfect Metamaterial Absorber Based on an Asymmetric H-Shaped Structure for Terahertz Waves

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2193 ◽  
Author(s):  
Taiguo Lu ◽  
Dawei Zhang ◽  
Peizhen Qiu ◽  
Jiqing Lian ◽  
Ming Jing ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Interference Theory ◽  
Metamaterial Structure ◽  
Terahertz Waves ◽  
Potential Applications ◽  
Band Absorption ◽  
Perfect Metamaterial Absorber ◽  
Simulation Results ◽  
Absorption Frequencies

We designed an ultra-thin dual-band metamaterial absorber by adjusting the side strips’ length of an H-shaped unit cell in the opposite direction to break the structural symmetry. The dual absorption peaks approximately 99.95% and 99.91% near the central resonance frequency of 4.72 THz and 5.0 THz were obtained, respectively. Meanwhile, a plasmon-induced transmission (PIT) like reflection window appears between the two absorption frequencies. In addition to theoretical explanations qualitatively, a multi-reflection interference theory is also investigated to prove the simulation results quantitatively. This work provides a way to obtain perfect dual-band absorption through an asymmetric metamaterial structure, and it may achieve potential applications in a variety of fields including filters, sensors, and some other functional metamaterial devices.

Sign in / Sign up

Export Citation Format

Share Document