Results 51 to 60 of about 33,140 (313)
Wide-band polarization independent perfect metamaterial absorber based on concentric rings topology for solar cells application [PDF]
, 2016 Since the discovery of metamaterial absorber to the present days, several designs were proposed which display single-, dual-, and multiple-bands absorption responses in almost all regions of solar spectrum.
Rufangura, Patrick, Sabah, Cumali
core +1 more source
Perfect Metamaterial Absorber [PDF]
Physical Review Letters, 2008 We present the design for an absorbing metamaterial element with near unity absorbance. Our structure consists of two metamaterial resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a metamaterial absorber with a slightly lower
Landy, N. I. +4 more
openaire +3 more sources
Optica, 2020 We report the theoretical prediction and experimental realization of the optical phenomenon of “ballistic resonance.” This resonance, resulting from the interplay between free charge motion in confining geometries and periodic driving electromagnetic fields, can be utilized to achieve negative permittivity at frequencies well above the bulk plasma ...
Kun Li +6 more
openaire +2 more sources
Topological Insulator Metamaterials
Chemical Reviews, 2023 Confinement of electromagnetic fields at the subwavelength scale via metamaterial paradigms is an established method to engineer light-matter interaction in most common material systems, from insulators to semiconductors, from metals to superconductors.
Harish N. S. Krishnamoorthy +3 more
openaire +5 more sources
Multiband Metamaterial Absorber Design Based on Plasmonic Resonances for Solar Energy Harvesting [PDF]
, 2016 A new metamaterial absorber is designed and characterized numerically for the harvesting of solar energy. The design is composed of three layers in which the interaction among them gives rise to the plasmonic resonances.
Mulla, Batuhan, Sabah, Cumali
core +1 more source
Microwave modes of ambidextrous helices
Scientific ReportsThis work presents an investigation into the electromagnetic properties of ambidextrous helices, structures composed of equal numbers of left- and right-handed turns, operating in the gigahertz frequency range.
J. Gudge-Brooke +4 more
doaj +1 more source
Emulation of metamaterial waveguides
Algerian Journal of Signals and Systems, 2018 In this work, we are interested by emulating metamaterial microwave waveguides which behave like conventional metallic ones. We use metamaterial layers based on two types of unit cells.
Khedidja BOURAS +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
A Toroidal Metamaterial Switch [PDF]
Advanced Materials, 2017 AbstractToroidal dipole is a localized electromagnetic excitation that plays an important role in determining the fundamental properties of matter due to its unique potential to excite nearly nonradiating charge–current configuration. Toroidal dipoles are recently discovered in metamaterial systems where it is shown that these dipoles manifest as ...
Gupta, Manoj +2 more
openaire +3 more sources
Zero electromagnetic coupling of closely spaced identical helical resonators
Scientific ReportsThe interaction between closely spaced elements in an electromagnetic array typically leads to significant inter-element coupling, altering the resonance properties of each element.
J. Gudge-Brooke +4 more
doaj +1 more source