Results 51 to 60 of about 10,273 (293)

Enhancing solar-thermal energy conversion with silicon-cored tungsten nanowire selective metamaterial absorbers

iScience, 2021
Summary: This work experimentally studies a silicon-cored tungsten nanowire selective metamaterial absorber to enhance solar-thermal energy harvesting. After conformally coating a thin tungsten layer about 40 nm thick, the metamaterial absorber exhibits ...
Jui-Yung Chang, Sydney Taylor, Ryan McBurney, Xiaoyan Ying, Ganesh Allu, Yu-Bin Chen, Liping Wang   +6 more
doaj   +1 more source

Switchable metamaterial reflector/absorber for different polarized electromagnetic waves

, 2010
We demonstrate a controllable electromagnetic wave reflector/absorber for different polarizations with metamaterial involving electromagnetic resonant structures coupled with diodes. Through biasing at different voltages to turn ON and OFF the diodes, we
Feng, Yijun, Huang, Ci, Jiang, Tian, Zhao, Juming, Zhu, Bo   +4 more
core   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Metamaterial Broadband Absorber Induced by Synergistic Regulation of Temperature and Electric Field and Its Optical Switching Application

Sensors
Nowadays, metamaterial absorbers still suffer from limited bandwidth, poor bandwidth scalability, and insufficient modulation depth. In order to solve this series of problems, we propose a metamaterial absorber based on graphene, VO2, gallium silver ...
Rundong Yang, Yun Liu, Xiangfu Wang
doaj   +1 more source

X-band operations metamaterial absorber with extended circular ring topology for size reduction [PDF]

, 2017
A metamaterial electromagnetic wave absorber consisting of a big circular ring patch with four smaller suppression circular rings is presented in this report.
Ayop, O., Bala, B. D., Gajibo, M. M., Majid, H. A., Murad, N. A., Rahim, M. K. A.   +5 more
core   +2 more sources

Geometrically Templated, Ultra‐Lightweight and High Strength Soap Films from Lyotropic Liquid Crystalline Graphene Oxide/Polymer Composites

Advanced Functional Materials, EarlyView.
Shellular materials form spontaneously by dip coating the primitive triply periodic minimal surface (TPMS) wireframe in an aqueous solution of lyotropic liquid crystalline graphene oxide (GO) nanosheets mixed with polymers. Regulated by surface tension, GO nanosheets align on the polymer soap film as the stress builds up during drying.
Yinding Chi, Yuchong Gao, Mostafa Akbari, Kun‐Hao Yu, Kun‐Yu Wang, Mohit Patel, Shouhong Fan, Ziyun Zhang, Masoud Akbarzadeh, Shu Yang   +9 more
wiley   +1 more source

Nonlinear terahertz devices utilizing semiconducting plasmonic metamaterials

, 2015
The development of responsive metamaterials has enabled the realization of compact tunable photonic devices capable of manipulating the amplitude, polarization, wave vector, and frequency of light. Integration of semiconductors into the active regions of
Averitt, Richard D., Bank, Seth R., Fan, Kebin, Keiser, George R., Maddox, Scott J., Seren, Huseyin R., Zhang, Jingdi, Zhang, Xin, Zhao, Xiaoguang   +8 more
core   +1 more source

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

Advanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

Broadband water-based metamaterial absorber with wide angle and thermal stability

AIP Advances, 2020
In order to widen the absorption band of the metamaterial absorber to expand its application field, using the electromagnetic characteristics of water in the microwave band, a water-based metamaterial absorber with a structure different from the ...
Xiaoqi Zhang, Fengping Yan, Xuemei Du, Wei Wang, Min Zhang   +4 more
doaj   +1 more source

Triple band microwave metamaterial absorber based on double E-shaped symmetric split ring resonators for EMI shielding and stealth applications

Journal of Materials Research and Technology, 2022
In this paper, a double E-shaped symmetric split ring resonators metamaterial inspired triple band microwave metamaterial absorber (MA) for EMI shielding and stealth applications in C and X band is presented.
Md Bellal Hossain, Mohammad Rashed Iqbal Faruque, Mohammad Tariqul Islam, Mandeep Singh, Muzammil Jusoh   +4 more
doaj   +1 more source