scholarly journals Computational analysis of octagonal torus-shaped nano meta-atom through fractional absorption bandwidth for applications in the terahertz regime

2020 ◽  
Vol 19 ◽  
pp. 103470
Author(s):  
Mohammad Tariqul Islam ◽  
Ahasanul Hoque ◽  
Mohd Hafiz Baharuddin ◽  
Norsuzlin Mohd Sahar ◽  
Hatem Rmili
Keyword(s):  
Computational Analysis ◽  
Absorption Bandwidth ◽  
Meta Atom ◽  
Fractional Absorption

scholarly journals A reflective-backing-free metamaterial absorber with broadband response

2017 ◽  
Vol 07 (03) ◽  
pp. 1750016 ◽  
Author(s):  
Cuilian Xu ◽  
Shaobo Qu ◽  
Jiafu Wang ◽  
Mingbao Yan ◽  
Yongqiang Pang ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Absorption Bandwidth ◽  
Meta Atom ◽  
Polarization Independent ◽  
Dielectric Multilayer

In this paper, we propose a polarization-independent and broadband perfect infrared (IR) metamaterial absorber (MA) without reflective backing. The proposed absorber is a periodic meta-atom array consisting of metal-dielectric-multilayer truncated cones which can absorb 80% EM wave from 50.70 to 81.87[Formula: see text]THz, while transmit 80% EM wave from 0 to 37.71[Formula: see text]THz. With the decreasing of frequency, the transmissivity increases, which is close to 100% from 0 to 5[Formula: see text]THz. We can broaden the absorption bandwidth of the MA by cascading multi-layers truncated cones. Furthermore, the proposed IR MA promises to be one desirable stealth material for radar-IR compatibility.

Measurement and Three-Dimensional Computational Analysis for Flow Electrification in Complex-Shaped Ducts

2016 ◽  
Vol 136 (3) ◽  
pp. 318-324
Author(s):  
Naoya Miyamoto ◽  
Makoto Koizumi ◽  
Hiroshi Miyao ◽  
Takayuki Kobayashi ◽  
Kojiro Aoki
Keyword(s):  
Computational Analysis ◽  
Three Dimensional ◽  
Flow Electrification

Computational analysis of hypersonic turbulent flows over a projectile with aerospike

AIAA Journal ◽  
1998 ◽  
Vol 36 ◽  
pp. 163-172
Author(s):  
Venkata S. Krishnamurty ◽  
Wei Shyy
Keyword(s):  
Turbulent Flows ◽  
Computational Analysis
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