Results 31 to 40 of about 3,364 (187)

Plasmonic and Lattice Resonances in Flexible Metasurfaces for Enhanced Mechano-Optical Properties [PDF]

open access: yesE3S Web of Conferences
Flexible metasurfaces integrating plasmonic nanostructures offer promising avenues for tunable optomechanical applications, yet achieving precise control over mechano-optical responses remains challenging.
Tao Wei, Maurer Thomas, Fleischer Monika
doaj   +1 more source

RuRh Bimetallene Nanoring as High‐efficiency pH‐Universal Catalyst for Hydrogen Evolution Reaction

open access: yesAdvanced Science, 2021
Electrocatalysis of the hydrogen evolution reaction (HER) is a vital and demanding, yet challenging, task to produce clean energy applications. Here, the RuRh2 bimetallene nanoring with rich structural defects is designed and successfully synthesized by ...
Xueqin Mu   +6 more
doaj   +1 more source

Dynamical Theory of Artificial Optical Magnetism Produced by Rings of Plasmonic Nanoparticles [PDF]

open access: yes, 2008
We present a detailed analytical theory for the plasmonic nanoring configuration first proposed in [A. Alu, A. Salandrino, N. Engheta, Opt. Expr. 14, 1557 (2006)], which is shown to provide negative magnetic permeability and negative index of refraction ...
A. K. Sarychev   +8 more
core   +3 more sources

Metal nanoring and tube formation on carbon nanotubes [PDF]

open access: yes, 2002
The structural and electronic properties of aluminum covered single wall carbon nanotubes (SWNT) are studied from first-principles for a large number of coverage.
Bagci, V. M. K.   +4 more
core   +2 more sources

Strained Porphyrin Tape–Cycloparaphenylene Hybrid Nanorings

open access: yesOrganic Letters, 2022
V-shaped porphyrin dimers, with masked para-phenylene bridges, undergo efficient oxidative coupling to form meso-meso linked cyclic porphyrin oligomers. Reductive aromatization unmasks the para-phenylenes, increasing the strain. Oxidation then fuses the porphyrin dimers, providing a nanoring with curved walls.
Stawski, Wojciech   +5 more
openaire   +4 more sources

A terahertz-vibration to terahertz-radiation converter based on gold nanoobjects: a feasibility study

open access: yesBeilstein Journal of Nanotechnology, 2016
Background: The need for practical and adaptable terahertz sources is apparent in the areas of application such as early cancer diagnostics, nondestructive inspection of pharmaceutical tablets, visualization of concealed objects. We outline the operation
Kamil Moldosanov, Andrei Postnikov
doaj   +1 more source

Plasmonic shock waves and solitons in a nanoring [PDF]

open access: yes, 2017
We apply the hydrodynamic theory of electron liquid to demonstrate that a circularly polarized radiation induces the diamagnetic, helicity-sensitive dc current in a ballistic nanoring.
Kachorovskii, V. Yu.   +3 more
core   +2 more sources

AI-Enhanced GWO-FDTD Co-Design of Multi-Band Plasmonic Nanorings for Multiplexed Biosensing [PDF]

open access: yesJournal of Optoelectronical Nanostructures
In this paper, we explore the notable advancements in optical biosensors that have emerged over the past decade. This analysis includes innovative fabrication techniques and the growing areas of application.
Mohsen Nasrolahi   +3 more
doaj   +1 more source

Design of infrared optical absorber using silver nanorings array made by a top-down process

open access: yesScientific Reports, 2023
This paper presents the numerical simulation and fabrication of a metasurface composed of silver nanorings with a split-ring gap. These nanostructures can exhibit optically-induced magnetic responses with unique possibilities to control absorption at ...
I. Bouanane   +9 more
doaj   +1 more source

Angular Momentum-Dependent Transmission of Circularly Polarized Vortex Beams Through a Plasmonic Coaxial Nanoring

open access: yesIEEE Photonics Journal, 2018
In this paper, we report on the theoretical and numerical study of the transmission of circularly polarized vortex beams through a plasmonic coaxial nanoring.
Shuai Wang   +9 more
doaj   +1 more source

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