Results 31 to 40 of about 112,677 (274)

Design and Application Research of All-Dielectric Nanostructure Colorful Display

open access: yesApplied Sciences, 2019
Structural colors generated by plasmonic resonances in metallic nanostructures have been intensively studied and exciting progress has been made. However, because of the inherent plasmon damping, the saturation of these colors generated by metallic ...
Shishang Luo   +4 more
doaj   +1 more source

All-Si valley-Hall photonic topological insulator

open access: yesNew Journal of Physics, 2016
An all-Si photonic structure emulating the quantum-valley-Hall effect is proposed. We show that it acts as a photonic topological insulator (PTI), and that an interface between two such PTIs can support edge states that are free from scattering.
Tzuhsuan Ma, Gennady Shvets
doaj   +1 more source

Colloidal Mie Resonators for All‐Dielectric Metaoptics

open access: yesAdvanced Photonics Research, 2021
High refractive index dielectric nanostructures exhibiting electric and magnetic Mie resonances offer a powerful platform for realizing unprecedented control of electromagnetic waves at the nanoscale and enhanced light–matter interactions.
Hiroshi Sugimoto, Minoru Fujii
doaj   +1 more source

All-dielectric metamaterial frequency selective surface [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
Frequency selective surface (FSS) has been extensively studied due to its potential applications in radomes, antenna reflectors, high-impedance surfaces and absorbers. Recently, a new principle of designing FSS has been proposed and mainly studied in two
Jun Wang   +7 more
doaj   +1 more source

All-dielectric nanoantenna for efficient reflectors irradiation

open access: yesPhysical Sciences and Technology, 2021
In this paper, we propose a new kind of nanoantenna for effective illumination of parabolic surfaces, constituting of a silicon cylinder acting as a reflector and dipole source as an emitter.
A. K. Ospanova   +2 more
doaj   +1 more source

All-dielectric Mie-resonant metaphotonics

open access: yesComptes Rendus. Physique, 2020
All-dielectric subwavelength structures made of high-refractive-index materials combine a unique set of advantages in comparison with their plasmonic counterparts.
Bonod, Nicolas, Kivshar, Yuri
doaj   +1 more source

All-dielectric χ(2) metasurfaces: recent progress

open access: yesOpto-Electronic Advances, 2022
Optical metasurfaces, i.e. arrays of nanoantennas with sub-wavelength size and separation, enable the manipulation of light-matter interactions in miniaturized optical components with no classical counterparts.
Carlo Gigli, Giuseppe Leo
doaj   +1 more source

Nonlinear Imaging with All-Dielectric Metasurfaces

open access: yesNano Letters, 2020
Nonlinear metasurfaces incorporate many of the functionalities of their linear counterparts such as wavefront shaping but simultaneously they perform nonlinear optical transformations. This dual functionality leads to a rather unintuitive physical behavior which is still widely unexplored for many photonic applications.
Christian Schlickriede   +5 more
openaire   +3 more sources

All-fiber ellipsometer for nanoscale dielectric coatings

open access: yesOpto-Electronic Advances, 2023
Multiple mode resonance shifts in tilted fiber Bragg gratings (TFBGs) are used to simultaneously measure the thickness and the refractive index of TiO2 thin films formed by Atomic Layer Deposition (ALD) on optical fibers.
Jose Javier Imas   +5 more
doaj   +1 more source

Resonance Properties of Optical All-Dielectric Metamaterials Using Two-Dimensional Multipole Expansion [PDF]

open access: yes, 2012
We examine the electromagnetic response of metamaterial unit elements consisting of dielectric rods embedded in a non-magnetic background medium. We establish a theoretical framework where the response is described through the electric and magnetic ...
Chremmos, Ioannis   +2 more
core   +1 more source

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