Results 91 to 100 of about 10,273 (293)

On The Study of Development of X Band Metamaterial Radar Absorber

open access: yesAdvanced Electromagnetics, 2012
A new development of metamaterial applications in radar absorbers for X band is introduced. Two modifications were suggested based on two different approaches which are a new called fan shaped resonator absorber and a modified high impedance metamaterial
M. A. Abdalla, Z. Hu
doaj   +1 more source

Resonant enhancement of Raman scattering in metamaterials with hybrid electromagnetic and plasmonic resonances

open access: yes, 2016
A tri-layer metamaterial perfect absorber of light, consisting of (Al/ZnS/Al) films with the top aluminium layer patterned as an array of circular disk nanoantennas, is investigated for resonantly enhancing Raman scattering from C-60 fullerene molecules ...
Desai, Narayanarao   +2 more
core   +1 more source

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

Hydrogel‐Based Vat Photopolymerization of Ceramics and Metals with Low Shrinkages via Repeated Infusion Precipitation

open access: yesAdvanced Materials, EarlyView.
This work introduces an in situ precipitation strategy for the hydrogel‐based vat photopolymerization of architected ceramics and metals with reduced shrinkages and improved densities. Repeated infusion‐precipitation significantly increases metal loading within the hydrogels, which improves part quality after thermal conversion.
Yiming Ji   +3 more
wiley   +1 more source

Electromechanically Tunable Metasurface Transmission Waveplate at Terahertz Frequencies

open access: yes, 2017
Dynamic polarization control of light is essential for numerous applications ranging from enhanced imaging to materials characterization and identification.
Averitt, Richard D.   +6 more
core   +1 more source

Broadband radiation-absorbing metamaterial

open access: yesCLEO:2011 - Laser Applications to Photonic Applications, 2011
Using the broadband “super-singularity” in the density of states of (meta) materials with hyperbolic dispersion, we demonstrate, both theoretically and experimentally, a new concept of radiation-absorbing systems.
Narimanov, Evgenii E.   +4 more
openaire   +3 more sources

Remorphable Architectures: Reprogramming Global Bistability through Locally Bistable Metamaterials

open access: yesAdvanced Materials, EarlyView.
Local bistable reconfiguration in mechanical metamaterials is leveraged in globally bistable architectures to enable in situ reprogrammable transition pathways through state flip of individual building blocks. The local‐to‐global correspondence of instabilities empowers soft robotic systems with on‐demand morphing traits, as well as aerospace ...
Lei Wu   +3 more
wiley   +1 more source

Large-area, wide-angle, spectrally selective plasmonic absorber

open access: yes, 2011
A simple metamaterial-based wide-angle plasmonic absorber is introduced, fabricated, and experimentally characterized using angle-resolved infrared spectroscopy.
Andrew Milder   +7 more
core   +1 more source

Physical Intelligence in Small‐Scale Robots and Machines

open access: yesAdvanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

Design and Fabrication of a Novel Wideband DNG Metamaterial with the Absorber Application in Microwave X-Band

open access: yesAdvances in Condensed Matter Physics, 2017
A novel metamaterial, which exhibits a wideband double negative behavior in X-band, is proposed, designed, and investigated in this paper. The metamaterial is composed of modified S-shaped split-ring resonators (S-SRR). The periodic structure is designed
Ahmed Mahmood   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy