Results 51 to 60 of about 10,498 (267)
Dielectric Metamaterials with Toroidal Dipolar Response
Physical Review X, 2015 Toroidal multipoles are the terms missing in the standard multipole expansion; they are usually overlooked due to their relatively weak coupling to the electromagnetic fields.
Alexey A. Basharin +6 more
doaj +1 more source
Advanced Materials, EarlyView.ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee +6 more
wiley +1 more source
Research, 2019 The mechanism of negative permittivity/permeability is still unclear in the random metamaterials, where the precise control of microstructure and electromagnetic properties is also a challenge due to its random characteristic.
Peitao Xie +6 more
doaj +2 more sources
Deep Subwavelength Power Concentration-Based Hyperbolic Metamaterials
International Journal of Optics, 2012 Hyperbolic metamaterials can manipulate electromagnetic waves by converting evanescent waves into propagating waves and thus support light propagation without diffraction limit.
Amanpreet Kaur +4 more
doaj +1 more source
Sustainable Solutions in Sound Shielding: Harnessing Metamaterials for Acoustic Cloaking [PDF]
E3S Web of ConferencesThe development of metamaterials promises to enable smallscale, worldwide industry-wide acoustic, electromagnetic, mechanical, and solar energy harvesting.
Singh Thapa Devendra +6 more
doaj +1 more source
High‐Sensitivity Terahertz Gas Sensing Enabled by Undercut Metal‐Dielectric‐Metal Metamaterial
Advanced Materials Interfaces, EarlyView.A terahertz (THz) metamaterial gas sensor is demonstrated using a metal–dielectric–metal (MDM) absorber with an undercut dielectric layer, which enlarges the gas‐replaced volume and strengthens refractive‐index perturbation of the resonant mode. A reflection dip at 0.766 THz is observed, and acetone–nitrogen tests yield concentration‐dependent shifts ...
Naoki Inomata +2 more
wiley +1 more source
Hyperbolic dispersion metamaterials and metasurfaces
, 2021 In recent years a wide interest has been spurred by the inverse design of artificial materials for nano-biophotonic applications. In particular, the extreme optical properties of artificial hyperbolic dispersion nanomaterials allowed to access new ...
Giovanna Palermo +5 more
core +1 more source
Electromagnetic cloaking with metamaterials
Materials Today, 2009 Electromagnetic cloaking has aroused increasing interest in the scientific community, especially amongst researchers who are developing so-called metamaterials - artificial composites having exotic electromagnetic properties. In this paper we review the basic principles of metamaterials, especially those for cloaking applications, and describe the ...
Alitalo, Pekka, Tretyakov, Sergei
openaire +1 more source
Controlling the Electromagnetic Field Confinement with Metamaterials [PDF]
Scientific Reports, 2016 AbstractThe definition of a precise illumination region is essential in many applications where the electromagnetic field should be confined in some specific volume. By using conventional structures, it is difficult to achieve an adequate confinement distance (or volume) with negligible levels of radiation leakage beyond it.
Bonache Albacete, Jordi +5 more
openaire +4 more sources
A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials
Advanced Materials Interfaces, EarlyView.Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav +2 more
wiley +1 more source