Results 11 to 20 of about 2,328 (261)

Optically controlled and polarized sensitivity adjustable terahertz metamaterial absorber

Results in Optics, 2022
A photoactive terahertz (THz) absorber is designed based on the quadruple rotational symmetrical metamaterial structure combined with the GaAs bars. For the bare metallic metamaterial structure, the THz absorber shows a polarization insensitive property ...
Chao Ma, Aosheng Zheng, Xiaoxian Song, Zijun Yao, Yang Bi, Maosheng Yang, Haiting Zhang, Yunxia Ye, Yunpeng Ren, Zijie Dai, Jianquan Yao   +10 more
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Comment on “Design and Characterization of an Ultrabroadband Metamaterial Microwave Absorber”

IEEE Photonics Journal, 2020
The authors have proposed an Ultrabroadband Metamaterial Microwave Absorber. The authors have claimed that the proposed structure is metamaterial absorber. We have recognized that the designed structure is not a metamaterial absorber because of ignorance
Saeed Ur Rahman, Habib Ullah, Muhammad Sajjad, Muhammad Irshad khan, Qunsheng Cao   +4 more
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Metamaterial Electromagnetic Wave Absorbers [PDF]

Advanced Materials, 2012
AbstractThe advent of negative index materials has spawned extensive research into metamaterials over the past decade. Metamaterials are attractive not only for their exotic electromagnetic properties, but also their promise for applications. A particular branch–the metamaterial perfect absorber (MPA)–has garnered interest due to the fact that it can ...
Claire M, Watts, Xianliang, Liu, Willie J, Padilla   +2 more
openaire   +2 more sources

Wideband Metamaterial Absorber Based on Combination of Unit Cells

JAREE (Journal on Advanced Research in Electrical Engineering), 2020
Metamaterial absorber is an electromagnetic wave absorber made from metamaterial. It basically works in narrow band frequency as it is designed in a particular shape that related to its resonance frequency.
Puji Handayani, Eko Setijadi, Muhammad Rendy Anggara, Gamantyo Hendrantoro, Ahmad Maulidiyanto   +4 more
doaj   +1 more source

Polarization Selective Broad/Triple Band Absorber Based on All-Dielectric Metamaterials in Long Infrared Regime

Photonics, 2023
In this paper, a polarization selective broad/triple-band metamaterial absorber based on SiO2 all-dielectric is designed and studied. The absorber works in a long infrared band (8–14 μm).
Haotian Zou, Bo Ni, Hua Zhou, Haibin Ni, Guohuan Hua, Jianhua Chang   +5 more
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Spectrum Absorbency of Metamaterial Perfect Absorber

The International Journal of Integrated Engineering, 2022
A triple-band metamaterial perfect absorber was introduced. The single and simple structure based on gold-bar shaped was designed on the 0.018λ Taconic TLY-5. The gold-bar shaped was designed horizontal initially was then being rotated anti-clockwise from0oto 90oto analyze and understand the change of absorption graph.
Siti Adlina Md Ali, Maisarah Abu, Siti Normi Zabri   +2 more
openaire   +1 more source

A Six-Fold Symmetric Metamaterial Absorber [PDF]

Materials, 2015
A novel microwave metamaterial absorber design is introduced along with its manufacturing and characterization. Significant results considering both bandwidth and angular stability are achieved. Parametric analysis and simplified equivalent circuit are provided to give an insight on the key elements influencing the absorber performance.
Humberto Fernández Álvarez, María De Cos Gómez, Fernando Las-Heras   +2 more
openaire   +3 more sources

Study on Temperature Adjustable Terahertz Metamaterial Absorber Based on Vanadium Dioxide

IEEE Access, 2020
In the study of modern optics, the work of terahertz metamaterial absorbers is mostly multi-band perfect absorbers and ultra-wideband perfect absorbers. In contrast, in practical applications, metamaterial absorbers with adjustable resonance frequency or
Yubing Zhang, Pinghui Wu, Zigang Zhou, Xifang Chen, Zao Yi, Jiayi Zhu, Tiansheng Zhang, Huge Jile   +7 more
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Universal metamaterial absorber

2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials), 2017
We propose a design for an universal absorber, characterized by a resonance frequency that can be tuned from visible to microwave frequencies independently of the choice of the metal and the dielectrics involved. An almost resonant perfect absorption up to 99.8 % is demonstrated at resonance for all polarization states of light and for a very wide ...
Omeis, F., Smaali, R., Moreau, A., Taliercio, T., Centeno, E.   +4 more
openaire   +3 more sources

Tunable triple-band and incident angle-independent absorber based on a cubic media particles stacking structure metamaterial

Results in Physics, 2019
A triple-band incident angle-independent absorber is numerically investigated based on cubic media particles stacking structure metamaterials. The proposed metamaterial absorber shows low absorption performance when the conductivity of VO2 particles is ...
Min Zhong
doaj   +1 more source