Results 71 to 80 of about 3,180 (187)
Narrow-band and highly absorbing fano resonance in a cavity-coupled dielectric metasurface
Metamaterial resonance offers a flexibility in engineering the frequency and bandwidth of light absorption for a variety of optoelectronic applications such as wavelength-selective photodetection, optical sensing and infrared camouflaging etc.
Jiachen Yu +5 more
doaj +1 more source
Optical Responses From Zero Optical‐Path‐Length Object
This work address a fundamental question—what is the ultimately minimal embodiment of optical objects that produce useful optical effects? In fact, such an object does not require nonzero physical and optical‐path‐length volume as opposed to the conventional perception.
Da Yong Lee +3 more
wiley +1 more source
Tuning the Fano Resonance with an Intruder Continuum [PDF]
19 pages, 4 ...
Fransson, J. +7 more
openaire +3 more sources
A plasmonic metasurface comprising gold cylinders of tailored dimensions exhibits simultaneously the generalized Kerker effect and a bound state in the continuum, allowing for a detailed study of the subtle interplay between these phenomena. The numerical simulation results are in good agreement with experimental measurements, and the underlying ...
Sergejs Boroviks +4 more
wiley +1 more source
Sharp Fano resonances in THz metamaterials
We report on the occurrence of sharp Fano resonances in planar terahertz metamaterials by introducing a weak asymmetry in a two gap split ring resonator. As the structural symmetry of the metamaterial is broken a Fano resonance evolves in the low-frequency flank of the symmetric fundamental dipole mode resonance.
Ranjan, Singh +3 more
openaire +2 more sources
A nanoparticle‐cluster‐on‐mirror (NPcoM) serves as a functionally deterministic sub‐nanocavity that emulates picocavities, enabling extreme light–matter interactions and polaritonic phenomena. ABSTRACT Pushing nanoscale optical confinement to its ultimate limits defines the regime of nano‐cavity quantum electrodynamics (nano‐cQED), where light‐matter ...
Huatian Hu +10 more
wiley +1 more source
Nonlinearly Tunable Fano Resonance in One-Dimensional Light Tunneling Heterostructure
In this paper, we theoretically investigate nonlinearly tunable Fano resonance by employing a light tunneling heterostructure with one-dimensional defective photonic crystals and a lossy metallic film. We find that the phenomenon of Fano resonance can be
Wenzhe He +5 more
doaj +1 more source
Observation of Excitonic Instability in a Monolayer Ta2NiSe5 With Strain Disorder
Monolayer Ta2${\rm Ta}_2$NiSe5${\rm NiSe}_5$ sustains an excitonic insulating phase up to 190 K, with Raman signatures of gap opening and critical excitonic fluctuations. Thickness‐independent large gap ratios highlight strong exciton‐phonon coupling, while substrate‐induced strain disorder depresses Tc, establishing monolayer Ta2${\rm Ta}_2$NiSe5${\rm
So Young Kim +13 more
wiley +1 more source
Kondo Screening and Coupling of Spin States on Graphene Nanoribbon
Coupling of spin states, at the terminus of 7‐AGNR, is manifested by a continuous presence of Kondo resonance across the line profile of the two magnetic sites. This ubiquitous presence of the Kondo effect indicates mediated exchange interactions that may lead to exotic magnetic ordering at the peripheral atoms.
Abdou Hassanien
wiley +1 more source
Fano-Like Resonance in an All-in-Fiber Structure
We achieve Fano-like resonances in an all-in-fiber structure embedded with an in-line Mach-Zehnder interferometer (MZI). A fiber Bragg grating is inserted into MZI's one arm to form a resonance, which functions as the discrete state of the Fano ...
Biqiang Jiang +8 more
doaj +1 more source

