Results 91 to 100 of about 928,507 (221)

Double Fano Resonances in S-Shaped Plasmonic Metasurfaces in Terahertz Region

open access: yesFrontiers in Physics, 2020
We numerically and experimentally demonstrated double Fano resonances in a simple S-shaped plasmonic metasurface in the terahertz frequency range. Apart from the electric-LC resonance and electric dipole (ED) resonance, two trapped modes are excited in ...
Weihang Xu   +5 more
doaj   +1 more source

Ultra-narrow Band Fano Resonance-Based All-Dielectric Optical Absorber Using Silica–Silicon Metamaterials

open access: yes
In this paper, an optical reflector is designed based on an all-dielectric metamaterial comprising silicon double bars with bent arms positioned on the surface of a silica layer.
Azadeh Sadat Naeimi   +3 more
core   +1 more source

Refractive Index Sensing Based on Fano Resonances of a Bus Metal–Insulator–Metal Waveguide with D-Shaped Resonant Cavity

open access: yesMicromachines
A plasmonic waveguide coupling cavity structure is proposed, consisting of a bus metal–insulator–metal (MIM) waveguide-coupled single/double D-shaped resonant cavity.
Yaner Qiu   +3 more
doaj   +1 more source

Fano Resonance Based on Metal-Insulator-Metal Waveguide-Coupled Double Rectangular Cavities for Plasmonic Nanosensors

open access: yesSensors, 2016
A refractive index sensor based on metal-insulator-metal (MIM) waveguides coupled double rectangular cavities is proposed and investigated numerically using the finite element method (FEM).
Zhidong Zhang   +4 more
doaj   +1 more source

Deep Reinforcement Learning Inverse Design of Dielectric Metasurfaces Supporting Dual Quasi‐BIC Resonances

open access: yesNanophotonics, Volume 15, Issue 19, 13 October 2026.
A deep reinforcement‐learning framework designs dielectric metasurfaces supporting dual quasi‐BIC resonances under tightly coupled multi‐objective constraints. By combining D3QN, rollout‐based lookahead, reward normalization, and prioritized replay, the method stabilizes the optimization of the resonance wavelength, quality factor, and near‐field ...
Ruixin Luo   +8 more
wiley   +1 more source

Large Rabi Splitting Driven by Plasmon‐Enhanced Hybrid Anapole States in Si–Au–WSe2 Heterostructures

open access: yesNanophotonics, Volume 15, Issue 18, 25 September 2026.
A silicon hybrid‐anapole microcavity coupled with a plasmonic array enables tripartite strong coupling with WSe2 excitons. Spatially extended field enhancement and coherent cavity–plasmon hybridization strengthen light–matter interactions, producing a giant 330 meV Rabi splitting at room temperature and offering a compact platform for low‐exciton ...
Yanhui Deng   +6 more
wiley   +1 more source

Probing Strong Coupling in Core–Shell Nanoparticles With Fast Electron Beams

open access: yesphysica status solidi (a), Volume 223, Issue 17, 9 September 2026.
An exact analytic formalism for evaluating electron‐energy loss and cathodoluminescence probabilities for core–shell nanoparticles explored by electron‐beam spectroscopies is derived. The formalism is exploited to understand strong exciton–plasmon and exciton–Mie mode coupling in nanophotonic architectures.
Annika Brandt   +3 more
wiley   +1 more source

Localized Ion Irradiation Enables Topography‐Free High‐Tc Superconducting Metamaterials

open access: yesAdvanced Optical Materials, Volume 14, Issue 35, 18 September 2026.
A topography‐free oxygen ion‐irradiation strategy is demonstrated for patterning superconducting YBCO terahertz metamaterials without physical material removal. The approach preserves film integrity while enabling large spectral tunability, ultrafast optical modulation, and dual‐band resonance control, providing a scalable platform for low‐loss ...
Teng Chen Ietro Pang   +5 more
wiley   +1 more source

Bismuth Nanogratings With Narrow Plasmon Resonances for Dynamic Polarized Color Generation and Colorimetric Sensing

open access: yesAdvanced Optical Materials, Volume 14, Issue 36, 25 September 2026.
Bismuth nanogratings are fabricated by pulsed laser deposition onto the nanostructured silver and polycarbonate surfaces of DVDs. They display spectrally‐narrow plasmon resonances yielding vivid colors, which are strongly sensitive to the polarization of light, angle of incidence, nature of the underlying surface and of the surrounding medium (air or ...
Fernando Chacón‐Sánchez   +5 more
wiley   +1 more source

Fano resonance properties of gold nanocrescent arrays

open access: yes, 2014
The Fano resonance induced by symmetry breaking could improve the sensitivity of localized surface plasmon resonance sensors. In this work, the spectra of gold nanocrescent arrays are measured and confirmed by simulation results through the finite ...
Li, Shunbo   +5 more
core   +1 more source

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