Results 31 to 40 of about 42,935 (288)
Cylindrical Resonator Sectorally Filled With DNG Metamaterial and Excited by a Line Source [PDF]
, 2012 A circular cylindrical resonator with metallic walls is analyzed in the phasor domain. The resonator contains a wedge of double-negative (DNG) metamaterial that is anti-isorefractive to the double-positive (DPS) material filling the remaining volume of ...
Graglia, Roberto +4 more
core +1 more source
Research on Low-Frequency Noise Control Based on Fractal Coiled Acoustic Metamaterials
Shock and Vibration, 2022 In this paper, a self-similar fractal coiled acoustic metamaterial is designed for the low-frequency noise control problem by combining a perforated plate and a coiled back cavity structure.
Hongyu Cui, Chengtao Liu, Haoming Hu
doaj +1 more source
Chemical Reviews, 2023 One of the most significant breakthroughs in physics of the last decade has been the discovery that materials with non-trivial topological properties for electronic, electromagnetic, acoustic and mechanical responses can be designed and manufactured at our will through engineered metamaterials (MMs).
Xiang Ni +3 more
openaire +3 more sources
Results in Physics, 2019 We report on the tunability of the frequency-dependent permittivity of a metal-ferroelectric-metal (MFM) capacitor fabricated with P(VDF-TrFE), an organic ferroelectric material.
S.-W. Han +4 more
doaj +1 more source
Development of diverse coding metamaterial structure for radar cross section reduction applications
Scientific Reports, 2022 Despite their widespread use for performing advanced electromagnetic properties, metamaterial suffers from several restrictions in this technological era.
Tayaallen Ramachandran +4 more
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Quantum master equation for coupling mechanism of metamaterial
Results in Physics, 2022 In this paper, we present a full quantum description for coupling mechanism of the metamaterial. We start the derivation from quantum master equation to fit the spectrum of THz metamaterial. Therefore we can employ the quantum master equation to describe
Wei Huang +6 more
doaj +1 more source
Journal of Optics, 2010 Optical space in metamaterials may be engineered to mimic the landscape of a multidimensional Universe which has regions of different topology and different effective dimensionality. The "metamaterial landscape" may include regions in which one or two spatial dimensions are compactified.
openaire +2 more sources
Science, 2009 Tunable Metamaterials The electromagnetic response of metamaterials gives rise to exciting phenomena such as cloaking, negative refraction, and perfect lensing. Their response, however, tends to depend strongly on resonant effects, thereby limiting the application bandwidth.
Driscoll, Tom +9 more
openaire +3 more sources
Electrically tunable harmonics in time-modulated metasurfaces for wavefront engineering
New Journal of Physics, 2018 Modulation of metasurfaces in time gives rise to several exotic space–time scattering phenomena by breaking the reciprocity constraint and generation of higher-order frequency harmonics. We introduce a new design paradigm for time-modulated metasurfaces,
Mohammad Mahdi Salary +2 more
doaj +1 more source
Highly tunable low frequency metamaterial cavity for vibration localization
Scientific Reports, 2022 Metamaterial cavity has gathered much attention recently due to its capability of localizing vibration energy. Despite the active research, however, there are still big technical challenges not solved yet.
Hong Woo Park +4 more
doaj +1 more source