Results 21 to 30 of about 36,989 (273)
Sensors, 2022 Proof of concept of a new real-time metasurface sensor for micropoison monitoring in aqueous solutions is proposed in this study. The sensor comprises a perfect absorber metasurface and gold nanoparticle layer on the front side of it.
Amir Abramovich +2 more
doaj +1 more source
Chiral Metasurface for Near-Field Imaging and Far-Field Holography Based on Deep Learning
Micromachines, 2023 Chiral metasurfaces have great influence on the development of holography. Nonetheless, it is still challenging to design chiral metasurface structures on demand.
Yihang Qiu +5 more
doaj +1 more source
Active nonlocal metasurfaces [PDF]
Nanophotonics, 2020 AbstractActively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication. Most wavefront-shaping metasurfaces can be considered “local” in that their operation depends on the responses of individual meta-units.
Malek Stephanie C. +3 more
openaire +4 more sources
Frequency coding metasurface for multiple directions manipulation of terahertz energy radiation
AIP Advances, 2019 A multifunctional frequency coding metasurface is proposed in terahertz frequency band. Different from the previous coding metasurface with a fixed phase difference of the neighbor coding unit cells in the whole working frequency band, the proposed ...
Shao-He Li, Jiu-Sheng Li
doaj +1 more source
Review of terahertz gradient metasurface
Dianzi Jishu Yingyong, 2019 Metasurface, a novel artificial electromagnetic material, its thickness is much smaller than the wavelength. By regulating the interaction between the sub-wavelength unit structure and the electromagnetic wave, the wave will undergo a phase or amplitude ...
Kou Wei +3 more
doaj +1 more source
General Metasurface Synthesis Based on Susceptibility Tensors [PDF]
, 2015 A general method, based on susceptibility tensors, is proposed for the synthesis of metasurfaces transforming arbitrary incident waves into arbitrary reflected and transmitted waves.
Achouri, Karim +2 more
core +1 more source
Frequency-Diverse Metasurface Antenna With Hybrid Bunching Methods for Coincidence Imaging
IEEE Access, 2020 A frequency-diverse metasurface antenna with hybrid bunching methods for coincidence imaging is proposed in this paper. The hybrid frequency-diverse bunching metasurface antenna contains an excitation system, a frequency-diverse metasurface and a double ...
Mengran Zhao +5 more
doaj +1 more source
Programmable Acoustic Metasurfaces [PDF]
Advanced Functional Materials, 2019 AbstractMetasurfaces open up unprecedented potential for wave engineering using subwavelength sheets. However, a severe limitation of current acoustic metasurfaces is their poor reconfigurability to achieve distinct functions on demand. Here a programmable acoustic metasurface that contains an array of tunable subwavelength unit cells to break the ...
Zhenhua Tian +7 more
openaire +3 more sources
Control Electromagnetic Waves Based on Multi-Layered Transparent Metasurface
Frontiers in Physics, 2019 Metasurface was presented to be the two-dimensional analogs of metamaterials that regulate the beam by adjusting the phase and amplitude of the wavefront.
Zhichao Sun +3 more
doaj +1 more source
Design and implementation of a near-field focused metasurface for microwave power transmission
Results in Physics, 2023 In this paper, a near-field focused (NFF) metasurface composed of sub-wavelength structures for microwave power transmission is designed and implemented.
Han Xiong +5 more
doaj +1 more source