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Mechanical metamaterials and beyond

open access: yesNature Communications, 2023
Mechanical metamaterials enable the creation of structural materials with unprecedented mechanical properties. However, thus far, research on mechanical metamaterials has focused on passive mechanical metamaterials and the tunability of their mechanical ...
Pengcheng Jiao   +4 more
semanticscholar   +1 more source

Acoustic Metamaterials

open access: yesArchives of Acoustics, 2023
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Bartłomiej Sztyler, Paweł Strumiłło
semanticscholar   +1 more source

Auxetic mechanical metamaterials: from soft to stiff

open access: yesInternational Journal of Extreme Manufacturing, 2023
Auxetic mechanical metamaterials are artificially architected materials that possess negative Poisson’s ratio, demonstrating transversal contracting deformation under external vertical compression loading.
Xiang Li   +4 more
semanticscholar   +1 more source

Voltage-controlled spin-wave intermodal coupling in lateral ensembles of magnetic stripes with patterned piezoelectric layer

open access: yesAIP Advances, 2021
Here we report about the strain-tuned dipolar spin-wave coupling in the adjacent system of yttrium iron garnet stripes, which were strain-coupled with the patterned piezoelectric layer. Spatially-resolved laser ablation technique was used for structuring
A. A. Grachev   +3 more
doaj   +1 more source

Supertoroidal light pulses as electromagnetic skyrmions propagating in free space

open access: yesNature Communications, 2021
Topology in electromagnetic fields can lead to a range of intriguing and unexpected phenomena. Here the authors describe a family of supertoroidal light pulses that exhibit skyrmionic topological structure flying in free space.
Yijie Shen   +3 more
doaj   +1 more source

Toy model of harmonic and sum frequency generation in 2D dielectric nanostructures

open access: yesScientific Reports, 2021
Optical nonlinearities of matter are often associated with the response of individual atoms. Here, using a toy oscillator model, we show that in the confined geometry of a two-dimensional dielectric nanoparticle a collective nonlinear response of the ...
Jie Xu, Vassili Savinov, Eric Plum
doaj   +1 more source

Electronically steered metasurface antenna

open access: yesScientific Reports, 2021
Mobile devices, climate science, and autonomous vehicles all require advanced microwave antennas for imaging, radar, and wireless communications. We propose a waveguide-fed metasurface antenna architecture that enables electronic beamsteering from a ...
Michael Boyarsky   +4 more
doaj   +1 more source

THz Metamaterial Characterization Using THz-TDS [PDF]

open access: yes, 2000
The purpose of this chapter is to familiarize the reader with metamaterials and describe terahertz (THz) spectroscopy within metamaterials research. The introduction provides key background information on metamaterials, describes their history and their ...
Kodama, Christopher H.   +1 more
core   +4 more sources

Optical Manipulation of Nanoparticles: A Selective Excitation Approach Using Highly Focused Orbital Angular Momentum Beams

open access: yesAdvanced Photonics Research, 2023
Orbital angular momentum and polarization states of highly focused vector vortex beams can be engineered to selectively excite the desired multipoles in nanoparticles, making them ideal candidates for complex optical applications. A platform based on the
Mohammad Mojtaba Sadafi   +3 more
doaj   +1 more source

MECHANICAL PROPERTIES OF 2D FLEXYNE AND REFLEXYNE POLYPHENYLACETYLENE NETWORKS: A COMPARATIVE COMPUTER STUDIES WITH VARIOUS FORCE-FIELDS

open access: yesTASK Quarterly, 2015
Auxetic materials exhibit the very unusual property of becoming wider when stretched and narrower when compressed, – they have a negative Poisson’s ratio.
LARA TRAPANI   +3 more
doaj   +1 more source

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