Results 71 to 80 of about 556,769 (269)
Achieving Directive Radiation and Broadband Microwave Absorption by an Anisotropic Metasurface
IEEE Access, 2019 Simultaneously integrating electromagnetic absorption and wavefront-shaping into a single metasurface with flat and low profile is crucial for many practical applications both in science and engineering community. Here, by introducing lossy components to
Jun Sun +6 more
doaj +1 more source
Toward a universal metasurface for optical imaging, communication, and computation
Nanophotonics, 2022 In recent years, active metasurfaces have emerged as a reconfigurable nanophotonic platform for the manipulation of light. Here, application of an external stimulus to resonant subwavelength scatterers enables dynamic control over the wavefront of ...
Thureja Prachi +6 more
doaj +1 more source
Dielectric Metasurfaces for Optical Wavefront Manipulation
, 2020 Metasurfaces are a novel class of optical devices, made up of an array of subwavelength scatterers that can allow unprecedented control of an optical wavefront. These devices can be fabricated using conventional nano and microfabrication processes en masse and have thin and lightweight form factor making them ideal for use in compact and miniaturized ...
openaire +3 more sources
Scalable Lithium Niobate Nanoimprinting for Nonlinear Metalenses
Advanced Materials, EarlyView.A broadband polycrystalline lithium niobate platform is developed for highly versatile and scalable fabrication of nonlinear metasurfaces. This work demonstrates simultaneous second harmonic generation and wavefront‐shaping via a metalens on this platform.
Ülle‐Linda Talts +3 more
wiley +1 more source
Optics Express, 2023 A broadband, electrically controlled, reconfigurable, circularly polarized reflective metasurface is presented. The chirality of the metasurface structure is changed by switching active elements, which benefits from the tunable current distributions ...
H. Xin +5 more
semanticscholar +1 more source
Deterministic approach to decoupling amplitude from phase via a single-layered metasurface
Materials & Design, 2023 Controlling the phase and amplitude of reflected waves has been challenging due to the inherent coupling between them. Changes in the phase of a wave often result in changes in its amplitude, and vice versa.
Fang Yuan +6 more
doaj
High-Q nanophotonics: sculpting wavefronts with slow light
Nanophotonics, 2020 Densely interconnected, nonlinear, and reconfigurable optical networks represent a route to high-performance optical computing, communications, and sensing technologies.
Barton David +6 more
doaj +1 more source
High quality factor metasurfaces for two-dimensional wavefront manipulation [PDF]
arXiv, 2022 The strong interaction of light with micro- and nanostructures plays a critical role in optical sensing, nonlinear optics, active optical devices, and quantum optics. However, for wavefront shaping, the required local control over light at a subwavelength scale limits this interaction, typically leading to low-quality-factor optical devices.
arxiv
Advancement in Colloidal Metasurfaces: Approaches for Scalable Photonic Devices
Advanced Materials Interfaces, EarlyView.This perspective explores colloidal metasurfaces composed of plasmonic and emitting nanoparticles assembled by laser interference lithography and template‐assisted self‐assembly methods. Precise design strategies achieve directional emission, low‐threshold lasing, and tunable photonic bandgaps.
Sezer Seçkin +2 more
wiley +1 more source
Reconfigurable Manipulation of Sound with a Multimaterial 3D Printed Origami Metasurface
Advanced Materials Technologies, EarlyView.This paper demonstrates a programmable origami‐inspired metasurface, using multimaterial three‐dimensional printing technology to achieve reconfigurable sound manipulation. The unique bistable design enables rapid switching between configurations, allowing for precise control of acoustic reflections with minimal mechanical input. The results showcase a
Dinh Hai Le +5 more
wiley +1 more source