Results 61 to 70 of about 38,934 (253)

Trapped-Mode Resonances in Planar Metamaterials with High Structural Symmetry

open access: yes, 2008
We propose a new type of planar metamaterials that can support high-Q electromagnetic modes, namely trapped modes, excitation of which is polarization ...
Fedotov, V.A.   +8 more
core   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

Giant magnetic modulation of a planar, hybrid metamolecule resonance

open access: yesNew Journal of Physics, 2014
Coupling magnetic elements to metamaterial structures creates hybrid metamolecules with new opportunities. Here we report on the magnetic control of a metamolecule resonance, by utilizing the interaction between a single split ring resonator (SRR) and a ...
Simon A Gregory   +4 more
doaj   +1 more source

Focusing Microwaves in the Fresnel Zone With a Cavity-Backed Holographic Metasurface

open access: yesIEEE Access, 2018
We present the design and experimental demonstration of a cavity-backed, holographic metasurface capable of focusing microwaves in the Fresnel zone. The circular cavity consists of two stacked plates: microwaves are injected into the bottom plate via a ...
Vinay R. Gowda   +4 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Nontrivial nonradiating all-dielectric anapole

open access: yesScientific Reports, 2017
Dynamic anapole is a promising element for future nonradiating devices, such as cloaked sources and sensors, quantum emitters, and especially the sources for observing dynamic Aharonov-Bohm effect. However, the anapole response can be damped by the Joule
Nikita A. Nemkov   +2 more
doaj   +1 more source

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz   +5 more
wiley   +1 more source

A guidance to intelligent metamaterials and metamaterials intelligence

open access: yesNature Communications
Abstract The bidirectional interactions between metamaterials and artificial intelligence have recently attracted immense interest to motivate scientists to revisit respective communities, giving rise to the proliferation of intelligent metamaterials and metamaterials intelligence.
Chao Qian, Ido Kaminer, Hongsheng Chen
openaire   +3 more sources

Nano-electromechanical switchable photonic metamaterials

open access: yes, 2011
We introduce mechanically reconfigurable electrostatically-driven photonic metamaterials (RPMs) as a generic platform for large-range tuning and switching of photonic metamaterial properties.
Ou, J-Y.   +3 more
core   +1 more source

Rotary 3D Printing With Integrated Electroplating

open access: yesAdvanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria   +5 more
wiley   +1 more source

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