Results 21 to 30 of about 42,935 (288)

Metamaterials and imaging [PDF]

open access: yesNano Convergence, 2015
Resolution of the conventional lens is limited to half the wavelength of the light source by diffraction. In the conventional optical system, evanescent waves, which carry sub-diffraction spatial information, has exponentially decaying amplitude and therefore cannot reach to the image plane.
Kim, Minkyung, Rho, Junsuk
openaire   +2 more sources

Metamaterial-based graphene thermal emitter [PDF]

open access: yes, 2017
A thermal emitter composed of a frequency-selective surface metamaterial layer and a hexagonal boron nitride-encapsulated graphene filament is demonstrated.
I Luxmoore (21873875)   +3 more
core   +6 more sources

Effect of Thermal and Mechanical Deformation of Metamaterial FDM Components [PDF]

open access: yes, 2009
At Lancaster University, research is currently investigating the use of rapid manufacturing (RM) to realise metamaterials, although key to the success of this project is the development of an understanding of how coated RM parts deform under thermal and ...
Tan, Yap   +3 more
core   +4 more sources

Magnetoelastic metamaterials [PDF]

open access: yes2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC), 2011
The study of advanced artificial electromagnetic materials, known as metamaterials, provides a link from material science to theoretical and applied electrodynamics, as well as to electrical engineering. Being initially intended mainly to achieve negative refraction, the concept of metamaterials quickly covered a much broader range of applications ...
Lapine, Mikhail   +3 more
openaire   +3 more sources

A Dual-Polarized Reconfigurable Reflectarray Antenna Based on a Symmetrically Rotated Sub-Array

open access: yesIEEE Access, 2023
This paper proposes a novel method for designing a dual-polarized reconfigurable reflectarray antenna (RRA) based on a symmetrically rotated sub-array operating in a single-band.
Sun-Gyu Lee, Jeong-Hae Lee
doaj   +1 more source

Advanced Processing of 3D Computational Microwave Polarimetry Using a Near-Field Frequency-Diverse Antenna

open access: yesIEEE Access, 2020
Polarimetry is typically restricted to far-field characterization of a target using beam-like waves, which results in a 2 x 2 scattering matrix representation under two orthogonal in-plane polarization bases.
Rixi Peng   +3 more
doaj   +1 more source

Experiments on Nonlocal Fluid-Flow Metamaterials. [PDF]

open access: yesAdv Sci (Weinh)
A nonlocal fluid‐flow metamaterial composed of standard microfluidic tubes and connectors is designed. Hence, the current of the system at one position depends on the gradient of fluid flow at many other positions, leading to unusual alternating backward and forward laminar flows of water.
Wang K, Chen Y, Wegener M.
europepmc   +2 more sources

Metamaterial superconductors [PDF]

open access: yesNanophotonics, 2015
Abstract Searching for natural materials exhibiting larger electron‐electron interactions constitutes a traditional approach to high‐temperature superconductivity research. Very recently, we pointed out that the newly developed field of electromagnetic metamaterials deals with the somewhat related task of ...
Smolyaninov Igor I.   +1 more
openaire   +5 more sources

Development and prospects of metamaterial in wireless power transfer

open access: yesIET Power Electronics, 2021
As a unique group of advanced artificial materials, metamaterials have found many interesting applications in various devices due to the ability to control electromagnetic fields.
Xiutao Huang   +5 more
doaj   +1 more source

Mechanical metamaterials

open access: yesReports on Progress in Physics, 2023
Abstract Mechanical metamaterials, also known as architected materials, are rationally designed composites, aiming at elastic behaviors and effective mechanical properties beyond (‘meta’) those of their individual ingredients—qualitatively and/or quantitatively.
Richard Craster   +3 more
openaire   +3 more sources

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