Results 71 to 80 of about 25,634 (258)

Scalable and High-Throughput Top-Down Manufacturing of Optical Metasurfaces

open access: yesSensors, 2020
Metasurfaces have shown promising potential to miniaturize existing bulk optical components thanks to their extraordinary optical properties and ultra-thin, small, and lightweight footprints.
Taejun Lee   +5 more
doaj   +1 more source

Wavelength‐Multiplexed 2D Beam Steering via a Passive Diffractive Network

open access: yesAdvanced Optical Materials, EarlyView.
Illustration of a wavelength‐multiplexed diffractive beam steering system, which is composed of K cascaded diffractive layers, each containing phase‐modulating elements that are jointly optimized using deep learning–based optimization. When illuminated with a set of wavelengths {λ1,λ2,…,λNw}$\{ {{{\lambda }_1},{{\lambda }_2},\ldots ,{{\lambda }_{{{N}_w}
Che‐Yung Shen   +5 more
wiley   +1 more source

Liquid crystal-integrated metasurfaces for an active photonic platform

open access: yesOpto-Electronic Advances
Metasurfaces have opened the door to next-generation optical devices due to their ability to dramatically modulate electromagnetic waves at will using periodically arranged nanostructures.
Dohyun Kang   +6 more
doaj   +1 more source

Extrinsic Limitations of Stealthy Hyperuniform Devices

open access: yesAdvanced Optical Materials, EarlyView.
Stealthy hyperuniform devices exhibit a scattering‐free angular region whose extent follows a simple quenching equation. Experimental measurements confirm this prediction but reveal quenching efficiencies far below theoretical expectations. Multiple scattering and finite‐size effects are quantified, establishing realistic performance limits for ...
Yuhao Xu   +5 more
wiley   +1 more source

Broadband light structuring through all-dielectric metasurfaces for imaging applications

open access: yes
The achievement of a wide-ranging and versatile response from a single optical device holds significant relevance in microscopy and bio-medical imaging techniques. These imaging methods help us find the building blocks of a targeted object.
Mahmood, Nasir
core   +1 more source

Controlling Polystyrene Particle Distribution in Colloidal Lithography For Correlated‐Disorder Structures

open access: yesAdvanced Optical Materials, EarlyView.
Colloidal lithography is a low‐cost, simple and scalable technique to fabricate correlated‐disorder nanostructures for light‐trapping in solar cells. This work investigates the control of polystyrene particle distribution in colloidal lithography, highlighting the importance of particle surface functionalization as well as the ability to tune the ...
Laura de Almeida   +5 more
wiley   +1 more source

Low-loss metasurfaces based on discretized meta-atoms

open access: yesCommunications Physics
Metasurfaces are established tools for manipulating light and enhancing light-matter interactions. However, the loss of conventional meta-atoms usually limits the performance potential of metasurfaces.
Yisheng Gao
doaj   +1 more source

Resonance shift in transmission from simulated data for various substrates and for various designs of THz metasurfaces

open access: yes
This data explores the impact of substrate choice on the sensitivity of sensors that utilize metallic terahertz metasurfaces as the actuating element. This data focuses specifically on metallic terahertz metasurfaces operating in transmission mode.
Sakowicz, Maciej
core   +1 more source

Hybridization of Gap Plasmons and Grating‐Coupled Surface Plasmon Polaritons in Metal Nanoparticle Cluster Arrays on a Mirror

open access: yesAdvanced Optical Materials, EarlyView.
Here we use a template‐assisted self‐assembly approach of metal colloids onto metal films to produce hybrid plasmonic metasurfaces that integrate nanoparticle‐on‐mirror cavities with periodic metal colloid arrays. The resulting coupling between gap plasmons and grating‐coupled surface plasmon polaritons enables programmable hybrid modes with tailored ...
Afroditi Koutsogianni   +6 more
wiley   +1 more source

Multiresponsive Dielectric Metasurfaces

open access: yes, 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

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