Results 101 to 110 of about 10,498 (267)

A Flexible PVDF-based Platform Combining Acoustofluidics and Electromagnetic Metamaterials [PDF]

, 2020
Acoustofluidic devices have been demonstrated effectively for liquid manipulation functionalities. Likewise, electromagnetic metamaterials have been employed as highly sensitive and wireless sensors. In this work, we introduced a new design combining the
Ran Tao, Wu, Jiaen, Fu, Richard, Yong Qing Fu, George Chatzipirpiridis, Shahrzad Zahertar, Tao, Ran, Canyelles-Pericas, Pep, Ergeneman, Olgac, Pep Canyelles-Pericas, Torun, Hamdi, Hamdi Torun, Fu, Yong Qing, Chatzipirpiridis, George, Olgac Ergeneman, Zahertar, Shahrzad, Jiaen Wu   +16 more
core   +1 more source

Studies of electromagnetically induced transparency in metamaterials

Optics Express, 2010
We have studied electromagnetically induced transparency (EIT) in metamaterials for various schemes corresponding to those in an atomic medium. We numerically calculate a symmetric dolmen scheme of metamaterials corresponding to a tripod model of EIT-based optical switching and illustrate plasmonic double dark resonances.
Hua, Xu, Yuehui, Lu, YoungPak, Lee, Byoung Seung, Ham   +3 more
openaire   +2 more sources

Extreme‐Thickness Meta‐Membrane for Controlling Terahertz Vectorial Beams

Advanced Science, EarlyView.
We propose ultra‐thin (λ/30) transmissive terahertz metasurfaces combining near‐field resonant and detour phases in coupled‐slit meta‐atoms, enabling continuous phase and polarization control beyond conventional designs. Based on leaky‐mode theory, scalar and vectorial terahertz Bessel beams at 0.39 THz are experimentally demonstrated, with ...
Yufei Song, Yixiang Xu, Yikai Xu, Yuanxi Liu, Shaojie Ma, Qiong He, Zhuo Wang, Lei Zhou   +7 more
wiley   +1 more source

Free-standing THz electromagnetic metamaterials

Optics Express, 2008
Using micromanufactured S-shaped gold strings suspended in free space by means of window-frames, we experimentally demonstrate an electromagnetic meta-material (EM(3)) in which the metallic structures are no longer embedded in matrices or deposited on substrates such that the response is solely determined by the geometrical parameters and the ...
Moser, H.O., Kong, J.A., Jian, L.K., Chen, H.S., Liu, G., Bahou, M., Kalaiselvi, S.M.P., Maniam, S.M., Cheng, X.X., Wu, B.I., Gu, P.D., Chen, A., Heusslerl, S.P., Bin Mahmood, S., Wen, L.   +14 more
openaire   +2 more sources

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

Meta-Chirality: Fundamentals, Construction and Applications

Nanomaterials, 2017
Chiral metamaterials represent a special type of artificial structures that cannot be superposed to their mirror images. Due to the lack of mirror symmetry, cross-coupling between electric and magnetic fields exist in chiral mediums and present unique ...
Xiaoliang Ma, Mingbo Pu, Xiong Li, Yinghui Guo, Ping Gao, Xiangang Luo   +5 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

A new type of dense silicon nitride-based metamaterial

Journal of Advanced Ceramics
Electromagnetic metamaterials have attracted widespread attention because of their unique properties, and the introduction of conductive metals or carbon into an insulating matrix is the main method for preparing metamaterials.
Lujie Wang, Xuejian Liu, Qian Qi, Dewei Ni, Hui Zhang, Jie Yin, Zhuhui Qiao, Zhengren Huang   +7 more
doaj   +1 more source

Dissipative loss in resonant metamaterials

, 2013
Metamaterials allow for the creation of electromagnetic media with properties that are not found in or, are much weaker in, natural materials. The authors discuss design methods to minimize dissipative loss and the use of gain to compensate dissipation ...
Soukoulis, C. M.,, Soukoulis, C. M., Koschny, T., Koschny, T.,, Tassin, Philippe,, Tassin, Philippe   +5 more
core   +1 more source

Updatable Closed‐Form Evaluation of Arbitrarily Complex Multiport Network Connections

Advanced Electronic Materials, EarlyView.
The inverse design of electrically large wave devices often uses reduced‐order multiport models with discrete optimization, requiring many evaluations of complex interconnections between subsystems that differ only in a few blocks. This paper introduces a closed‐form framework enabling efficient Woodbury low‐rank updates of related, previous ...
Hugo Prod'homme, Philipp del Hougne
wiley   +1 more source