Results 91 to 100 of about 15,942 (294)

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

Advanced Functional Materials, EarlyView.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi, Adam D. Alfieri, Wangleong Chen, Deep Jariwala   +3 more
wiley   +1 more source

Electro‐Thermally Controlled Active Mechanical Metamaterials with Programmable Stiffness and Nonreciprocity

Advanced Science
Active mechanical metamaterials have the potential to revolutionize material capabilities, by switching between different properties. The active mechanical metamaterial presented here can be remotely programmed to switch between compressive and shear ...
Jai Dunne, Robert D. Crapnell, Krzysztof K. Dudek, Tom Allen, Craig E. Banks, Olly Duncan   +5 more
doaj   +1 more source

Broadening Bandgap Width of Piezoelectric Metamaterial by Introducing Cavity

Applied Sciences, 2018
In this research, a semi-analytical model of the adaptive piezoelectric metamaterial, built upon continuum mechanics characterization, was formulated and analyzed to reveal the fundamental features of bandgap with respect to unit-cell parameters under ...
Jiawen Xu, Ruqiang Yan, J. Tang
doaj   +1 more source

Low Loss Metamaterials Based on Classical Electromagnetically Induced Transparency

, 2008
We demonstrate theoretically that electromagnetically induced transparency can be achieved in metamaterials, in which electromagnetic radiation is interacting resonantly with mesoscopic oscillators rather than with atoms.
Economou, E. N., Koschny, Th., Soukoulis, C. M., Tassin, Ph., Zhang, Lei   +4 more
core   +1 more source

Auxeticity‐by‐Assembly: Interlocking Modular Auxetic Metamaterials with Selectively Activatable AgNW–Graphene Oxide‐EGaIn Composite Interconnects for Scalable Freeform Photovoltaic Modules

Advanced Functional Materials, EarlyView.
Auxeticity‑by‑Assembly converts freeform photovoltaics from cut‑defined layouts to assembly‑defined systems. Standardized interlocking units generate negative‑Poisson‑ratio, reconfigurable architectures, while hinge regions are wired by selectively activatable AgNW–GO@EGaIn composite interconnects and a folding‑enabled interconnector layer. A decimeter‑
Seok Joon Hwang, Jiwon Ryu, Dae‐Hee Cho, YoungHoi Cho, Yewon Hwang, Haram Lee, Dong Hoe Kim, Byeong‐Kwon Ju, Seok Chung, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Gabseok Seo, Phillip Lee   +15 more
wiley   +1 more source

Tunable Mechanical Metamaterials [PDF]

, 2011
Abstract : We have established the feasibility of creating mechanical metamaterials over a broad range of frequencies. We have shown that it is possible to have stress waves with negative dynamic effective modulus of elasticity or negative dynamic effective density within various windows of frequencies.
openaire   +1 more source

Towards unusual mechanical properties of tensegrity lattice metamaterial

MATEC Web of Conferences, 2018
In the present paper a novel cellular metamaterial based on a tensegrity pattern is presented. The material is constructed from supercells, each of which consists of eight 4-strut simplex modules.
Al Sabouni-Zawadzka Anna, Gilewski Wojciech   +1 more
doaj   +1 more source

Reconfigurable photonic metamaterials drive by Coulomb, Lorentz and optical forces

, 2013
Metamaterials offer a huge range of enhanced and novel functionalities that natural materials cannot provide. They promise applications in superresolution imaging, optical data storage, optical filters, polarization control, cloaking, fraud prevention ...
Ou, J-Y., Plum, E., Valente, J., Zheludev, N.I.   +3 more
core  

Optical forces in nanowire pairs and metamaterials

, 2010
We study the optical force arising when isolated gold nanowire pairs and metamaterials with a gold nanowire pair in the unit cell are illuminated with laser radiation.
Chu, Chu, Cohen-Tannoudji, Costas M. Soukoulis, Dolling, Garcia-Garcia, Gay-Balmaz, Hallock, Halterman, Johnson, Katsarakis, Kippenberg, Koschny, Li, Liu, N’Gom, Papasimakis, Park, Penciu, Pendry, Philippe Tassin, Phillips, Povinelli, Rockstuhl, Rongkuo Zhao, Shalaev, Shelby, Smith, Tassin, Tassin, Thomas Koschny, Van Thourhout, Veselago, Wiederhecker, Zhang, Zhou   +35 more
core   +1 more source

Nonlocal Conduction in a Metawire

Advanced Materials, Volume 37, Issue 13, April 2, 2025.
A 1D metawire composed of twisted copper wires is designed and realized. This metamaterial exhibits pronounced effects of nonlocal electric conduction according to Ohm's law. The current at one location not only depends on the electric field at that location but also on other locations.
Julio Andrés Iglesias Martínez, Yi Chen, Ke Wang, Martin Wegener   +3 more
wiley   +1 more source