Performance enhancement due to a top dielectric coating on a metamaterial perfect absorber

2020 ◽  
Vol 59 (17) ◽  
pp. E118 ◽  
Author(s):  
Jitendra K. Pradhan ◽  
Venu Gopal Achanta ◽  
Amit K. Agarwal ◽  
S. Anantha Ramakrishna
Keyword(s):  
Performance Enhancement ◽  
Dielectric Coating ◽  
Perfect Absorber ◽  
Metamaterial Perfect Absorber

Numerical investigation of a tunable metamaterial perfect absorber consisting of two-intersecting graphene nanoring arrays

2019 ◽  
Vol 383 (24) ◽  
pp. 3030-3035 ◽  
Author(s):  
Chunlian Cen ◽  
Yubin Zhang ◽  
Cuiping Liang ◽  
Xifang Chen ◽  
Zao Yi ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Perfect Absorber ◽  
Tunable Metamaterial ◽  
Metamaterial Perfect Absorber

scholarly journals Flexible Broadband Metamaterial Perfect Absorber Based on Graphene-Conductive Inks

Photonics ◽  
2021 ◽  
Vol 8 (10) ◽  
pp. 440
Author(s):  
Le Van Long ◽  
Nguyen Sy Khiem ◽  
Bui Son Tung ◽  
Nguyen Thanh Tung ◽  
Trinh Thi Giang ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Optical Filters ◽  
Wide Frequency Range ◽  
Absorption Feature ◽  
Perfect Absorber ◽  
Frequency Range ◽  
Absorption Mechanism ◽  
Polarization Insensitive ◽  
Metamaterial Perfect Absorber ◽  
High Absorption

In this work, we proposed a flexible broadband metamaterial perfect absorber (FBMPA) by exploiting a pasted conductive-graphene ink on a polyimide substrate. For the flat FBMPA, an absorption over 90% was found to cover a wide frequency range (from 7.88 to 18.01 GHz). The high-absorption feature was polarization-insensitive and regarded as stable with respect to the oblique incidence up to 30 degrees of electromagnetic wave. The high absorption was maintained well even when the absorber was wrapped. That is, the FBMPA was attached to cylindrical surfaces (with the varying radius from 4 to 50 cm). For both flat and curved states, the absorption mechanism was explained by the perfect impedance matching and the dielectric loss of the proposed absorber. Our work provides the groundwork for the commercialization of future meta-devices such as sensors, optical filters/switchers, photodetectors, and energy converters.

A voltage-controllable VO2 based metamaterial perfect absorber for CO2 gas sensing application

Nanoscale ◽  
2022 ◽  
Author(s):  
Xiaocan Xu ◽  
Ruijia Xu ◽  
Yu-Sheng Lin
Keyword(s):  
Vanadium Dioxide ◽  
Potential Application ◽  
Gas Sensing ◽  
Perfect Absorber ◽  
Co2 Gas ◽  
Tuning Mechanism ◽  
Gas Molecules ◽  
Sensing Application ◽  
Temperature Manipulation ◽  
Metamaterial Perfect Absorber

Vanadium dioxide (VO2) based metamaterial perfect absorbers (MPAs) have high potential application values in sensing gas molecules. However, such tuning mechanism via temperature manipulation lacks the compatibility to the electronic...

Miniaturization of dielectric ceramic-based metamaterial perfect absorber

2022 ◽  
Vol 120 (1) ◽  
pp. 013502
Author(s):  
Weijia Luo ◽  
Xubin Wang ◽  
Shun Wang ◽  
Xueqian Wang ◽  
Zetan Liu ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
Dielectric Ceramic ◽  
Metamaterial Perfect Absorber
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