Results 71 to 80 of about 20,833 (309)
Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum
Advanced Materials, EarlyView.Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño +5 more
wiley +1 more source
Harmonic information transitions of spatiotemporal metasurfaces
Light: Science & Applications, 2020 Metamaterials: Heightened harmonics from moving metasurfaces The generation of light harmonics by rapidly-changing metasurfaces could provide exciting new methods of information processing.
Haotian Wu +6 more
doaj +1 more source
Metasurfaces for Divergent Beams and Large-Area Metasurfaces
, 2021 We will give an overview of our recent work on the design and fabrication of metasurfaces, i.e., dense arrays of subwavelength-sized scatterers (meta-atoms) designed in shape, size, position, and orientation.
Andr\ue9n, Daniel +4 more
core
Advanced Materials Interfaces, EarlyView.Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood +7 more
wiley +1 more source
Metasurfaces for photochemistry
As society transitions away from fossil fuels to renewable energy sources we will need to find new ways to generate fuels and feedstocks. Solar light-driven reactions could be harnessed to generate renewable fuels and chemicals with net-zero emissions at
Fusco, Zelio +4 more
core +1 more source
Nanoplasmonic filters for hollow core photonic crystal fibres
, 2014 We demonstrate a method to add photonic functionalities to the tip of hollow photonic crystal bres, for ultra-compact and integrated lab-on-bre applications.
Andrea Di Falco +3 more
core +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
Spatially dispersive metasurfaces
, 2017 Natural materials and substances possess a rich variety of electromagnetic properties over the entire electromagnetic spectrum. Despite this diversity, nature does not equip us with a full set of possible material tools for controlling electromagnetic ...
Asadchy, Viktar
core +1 more source
Multiresponsive Dielectric Metasurfaces
, 2022 S.1775-1783Tunable optical metasurfaces demonstrate a number of remarkable properties that are promising for realizing photonic devices for potential applications in telecommunications, holographic displays, and spatial light modulators, to name just a ...
Fasold, S. +6 more
core +1 more source
Advanced Materials Technologies, EarlyView.A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik +6 more
wiley +1 more source