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We demonstrate tunable pulling and pushing optical forces on plasmonic nanostructures around Fano resonance. The plasmonic nanostructure containing a spherical core with optical gain and a metallic shell shows much larger optical pulling…

光学 · 物理学 2017-10-18 D. L. Gao , R. Shi , Y. Huang , W. H. Ni , L. Gao

Tunable narrowband spectral filters with high light throughput and wide dynamic range have remarkable applications such as in optical communications, optical spectroscopy and spectral imaging. However, a cost is usually associated with the…

光学 · 物理学 2018-10-24 Ibrahim Abdulhalim

In this letter, we report a method of symmetry-breaking in an artificial Mie-based metamolecule. A Fano resonance with a Q factor of 96 is observed at microwave frequencies in a structure combining a split ring resonator (SRR) and a…

材料科学 · 物理学 2017-08-02 Xiaobo Wang , Ji Zhou

We propose a mechanism to actively tune the operation of plasmonic cloaks with an external magnetic field by investigating electromagnetic scattering by a dielectric cylinder coated with a magneto-optical shell. In the long wavelength limit…

光学 · 物理学 2015-05-12 W. J. M. Kort-Kamp , F. S. S. Rosa , F. A. Pinheiro , C. Farina

Nowadays nanotechnology allows to scale-down various important devices (sensors, chips, fibres, etc), and, thus, opens up new horizon for their applications. Nevertheless, the efficiency most of them is still based on the fundamental…

材料科学 · 物理学 2010-08-13 Andrey E. Miroshnichenko , Sergej Flach , Yuri S. Kivshar

Spectroscopic signatures associated with symmetric Lorentzian and asymmetric Fano line shapes are ubiquitous. Distinct features of Fano resonances in contrast with conventional symmetric resonances have found several applications in…

光学 · 物理学 2021-12-10 Davis M. Welakuh , Prineha Narang

We are interested in the resonant electromagnetic (EM) scattering by all-dielectric metasurfaces made of a two-dimensional lattice of nanoparticles with high refractive indices. In [Ammari et al., Trans. AMS, 376 (2023), 39-90], it has been…

光学 · 物理学 2023-10-13 Habib Ammari , Bowen Li , Hongjie Li , Jun Zou

We theoretically investigate multiphonons resonance Raman scattering between the Landau levels in graphene on the polar substrate using the Huang-Rhys's model. We not only present the single and multiple surface optical (SO) phonons…

介观与纳米尺度物理 · 物理学 2017-12-01 Zi-Wu Wang , Zhi-Qing Li

We consider electron transport in a quantum wire with a side-coupled quantum ring in a two-dimensional model that accounts for a finite width of the channels. We use the finite difference technique to solve the scattering problem as well as…

介观与纳米尺度物理 · 物理学 2010-10-07 B. Szafran , M. R. Poniedziałek

The review is devoted to a discussion of new (and often unexpected) aspects of the old problem of elastic light scattering by small metal particles, whose size is comparable to or smaller than the thickness of the skin layer. The main focus…

光学 · 物理学 2020-09-21 Michael I. Tribelsky , Andrey E. Miroshnichenko

In this research, we report the experimental evidence of the directional Fano resonances at the scattering of a plane, linearly polarized electromagnetic wave by a homogeneous dielectric sphere with high refractive index and low losses. We…

We investigate the Fano resonance in grating structures by using coupled resonators. The grating consists of a perfectly conducting slab with periodically arranged subwavelength slit holes, where inside each period, a pair of slits sit very…

偏微分方程分析 · 数学 2020-06-30 Junshan Lin , Hai Zhang

Fano resonances are features in transmissivity/reflectivity/absorption that owe their origin to the interaction between a bright resonance and a dark (i.e., sub-radiant) narrower resonance, and may emerge in the optical properties of planar…

We develop a theoretical framework, based on a multipole, quasi-static approach, for the prediction of the localized surface plasmon resonances in Fanoshells formed via geometrical symmetry-breaking in multilayer nanoshells consisting of a…

光学 · 物理学 2022-01-12 Luke C. Ugwuoke , Tjaart P. J. Krüger

An S matrix approach is developed to describe elastic scattering resonances of systems where the scattered particle is asymptotically confined and the scattering potential lacks continuous symmetry. Examples are conductance resonances in…

凝聚态物理 · 物理学 2009-10-22 J. U. Noeckel , A. D. Stone

The need of mathematically formulate relations between composite materials' properties and its resonance response is growing. This is due the fast technological advancement in micro-material manufacturing, present in chips for instance. In…

数学物理 · 物理学 2022-05-03 Taoufik Meklachi

Asymmetric spectral line shapes are a hallmark of interference of a quasi-bound state with a continuum of states. Such line shapes are well known for multichannel systems, for example, in photoionization or Feshbach resonances in molecular…

量子物理 · 物理学 2022-05-18 Prerna Paliwal , Alexander Blech , Christiane P. Koch , Edvardas Narevicius

The study of nanostructured artificial media for optics has expanded rapidly over the last few decades, coupled with improvements of fabrication technology that have enabled investigation of previously unrealisable optical scattering…

光学 · 物理学 2017-09-27 Ben Hopkins

Using a first principles approach combined with analysis of heuristic tight-binding models, we examine the connectivity dependence of two forms of quantum interference in single molecules. Based on general arguments, Fano resonances are…

介观与纳米尺度物理 · 物理学 2017-12-19 Ali K. Ismael Iain Grace , Colin J. Lambert

An exact expression is derived for the time-averaged electromagnetic energy within a magneto-dielectric coated sphere, which is irradiated by a plane and time-harmonic electromagnetic wave. Both the spherical shell and core are considered…

光学 · 物理学 2018-09-18 Tiago J. Arruda , Felipe A. Pinheiro , Alexandre S. Martinez