Results 21 to 30 of about 65,305 (312)
Bipartite Dielectric Huygens' Metasurface for Anomalous Refraction [PDF]
Phys. Scr. 98 115539, 2023, 2023 Huygens' metasurfaces - fundamentally based on Schelkunoff's equivalence principle, Huygens' metasurfaces consist of a two-dimensional array of Huygens' sources formed by co-located orthogonal electric and magnetic dipoles. Such metasurfaces provide electric and magnetic responses to an incoming electromagnetic (EM) wave, leading to unidirectional ...
arxiv +1 more source
Mechanochromic Reconfigurable Metasurfaces [PDF]
Advanced Science, 2019 AbstractThe change of optical properties that some usually natural compounds or polymeric materials show upon the application of external stress is named mechanochromism. Herein, an artificial nanomechanical metasurface formed by a subwavelength nanowire array made of molybdenum disulfide, molybdenum oxide, and silicon nitride changes color upon ...
Jun-Yu Ou +7 more
openaire +8 more sources
Coherent retroreflective metasurfaces [PDF]
Physical Review Research, 2021 Inhomogeneous metasurfaces have shown possibilities for unprecedented control of wave propagation and scattering. While it is conventional to shine a single incident plane wave from one side of these metastructures, illuminating by several waves simultaneously from both sides may enhance possibilities to control scattered waves, which results in ...
Cuesta, F. S. +4 more
openaire +5 more sources
Parametric Testing of Metasurface Stirrers for Metasurfaced Reverberation Chambers [PDF]
Sensors, 2019 In this paper, the correlation coefficients and the total scattering cross sections (TSCSs) for different types of metasurfaced stirrers and the traditional metallic stirrer, and the effects on field uniformity when such stirrers are used in reverberation chambers, are analyzed.
Hengyi Sun +9 more
openaire +7 more sources
Optical metasurfaces towards multifunctionality and tunability
Nanophotonics, 2022 Optical metasurfaces is a rapidly developing research field driven by its exceptional applications for creating easy-to-integrate ultrathin planar optical devices.
Du Kang +5 more
doaj +1 more source
Magnetless Reflective Gyrotropic Spatial Isolator Metasurface [PDF]
, 2021 We present the concept of a magnetless Reflective Gyrotropic Spatial Isolator (RGSI) metasurface. This is a birefringent metasurface that reflects vertically polarized incident waves into a horizontally polarized waves, and absorbs horizontally polarized incident waves, hence providing isolation between the two orthogonal polarization.
arxiv +1 more source
A review of metasurfaces: physics and applications [PDF]
Reports on progress in physics. Physical Society, 2016 Metamaterials are composed of periodic subwavelength metal/dielectric structures that resonantly couple to the electric and/or magnetic components of the incident electromagnetic fields, exhibiting properties that are not found in nature.
Houtong Chen, A. Taylor, N. Yu
semanticscholar +1 more source
Diffractive Nonlocal Metasurfaces
Laser & Photonics Reviews, 2022 Metasurfaces are ushering in an era of multifunctional control over optical wavefronts realized with ultrathin planarized devices. Recent advances have been enabling unprecedented control over the frequency response of these surfaces, suggesting that the
A. Overvig, A. Alú
semanticscholar +1 more source
Nature Reviews Materials, 2018 Acoustic metasurfaces derive their characteristics from the interaction between acoustic waves and specifically designed materials. The field is driven by the desire to control acoustic wave propagation using compact devices and is governed by fundamental and physical principles that provide the design rules and the functionality of a wave.
B. Assouar +5 more
semanticscholar +5 more sources
Metasurfaced Reverberation Chamber [PDF]
Scientific Reports, 2018 AbstractThe concept of metasurfaced reverberation chamber (RC) is introduced in this paper. It is shown that by coating the chamber wall with a rotating 1-bit random coding metasurface, it is possible to enlarge the test zone of the RC while maintaining the field uniformity as good as that in a traditional RC with mechanical stirrers.
Sun, Hengyi +7 more
openaire +5 more sources