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In this work, we are concerned with the mathematical modeling of the electromagnetic (EM) scattering by arbitrarily shaped non-magnetic nanoparticles with high refractive indices. When illuminated by visible light, such particles can…

数学物理 · 物理学 2021-08-13 Habib Ammari , Bowen Li , Jun Zou

We demonstrate that a periodic array of optical antennas sustains a resonant Near-Field (NF) and an anti-resonant Far-Field (FF) at the same energy and in-plane momentum. This phenomenon arises in the context of coupled plasmonic lattice…

光学 · 物理学 2012-02-28 S. R. K. Rodriguez , O. T. A. Janssen , G. Lozano , A. Omari , Z. Hens , J. Gomez Rivas

We consider plasmonic metasurfaces constituted by an arbitrary periodic arrangement of spherical metallic nanoparticles. Each nanoparticle supports three degenerate dipolar localized surface plasmon (LSP) resonances. In the regime where the…

介观与纳米尺度物理 · 物理学 2020-07-23 François Fernique , Guillaume Weick

We present analytical expressions for the resonance frequencies of the plasmonic modes hosted in a cylindrical nanoparticle within the quasistatic approximation. Our theoretical model gives us access to both the longitudinally and…

介观与纳米尺度物理 · 物理学 2021-01-29 Charles A. Downing , Guillaume Weick

We identify a new mechanism for cooperative emission of light by an ensemble of N dipoles near a metal nanostructure supporting a surface plasmon.The cross-talk between emitters due to virtual plasmon exchange leads to a formation of three…

材料科学 · 物理学 2015-05-13 Vitaliy N. Pustovit , Tigran V. Shahbazyan

The flexibility and versatility of nanoassembled plasmonic structures provide platforms for mesoscale tunable optical modulation. Our recently developed model for these nanoassembled plasmonic structures is composed of a dielectric…

光学 · 物理学 2024-12-31 Md. Imran Khan , Sayantani Ghosh , Arnold D. Kim

We demonstrate theoretically that a subwavelength spherical dielectric nanoparticle coated with a gain shell forms a nanolaser. Lasing modes of such a nanolaser are associated with the Mie resonances of the nanoparticle. We establish a…

介观与纳米尺度物理 · 物理学 2015-01-06 D. G. Baranov , A. P. Vinogradov , A. A. Lisyansky

A rigorous account of quantum nonlocal effects is paramount for understanding the optical response of metal nanostructures and for designing plasmonic devices at the nanoscale. Here, we present a scheme for retrieving the quantum surface…

介观与纳米尺度物理 · 物理学 2023-09-06 P. A. D. Gonçalves , F. Javier García de Abajo

Plasmonic lattices consisting of nanoparticles in a homogeneous environment are well known fortheir support of so-called lattice plasmon resonances. They are associated with localized surfaceplasmons coupled to each other via free…

光学 · 物理学 2020-11-18 I. M. Fradkin , S. A. Dyakov , N. A. Gippius

We investigate the dynamics of a plasmonic oscillation over a metal nanoparticle when it is strongly coupled to a quantum emitter (e.g. quantum dot, molecule). We simulate the density matrix evolution for a simple model; coupled…

光学 · 物理学 2013-08-27 Mehmet Emre Tasgin

Plasmon resonance in metals represents the collective oscillation of the free electron gas density and enables enhanced light-matter interactions in nanoscale dimensions. Traditionally, the classical Drude model describes the plasmonic…

The transverse magneto-optical Kerr effect (TMOKE) in magnetite-based magneto-plasmonic crystals is studied experimentally and theoretically. We analyze angle-resolved TMOKE spectra from two types of structures where noble metallic stripes…

We perform a study of the achievable field enhancement of plasmonic cascade nanolenses in the quantum and classical regimes, and explore the limits enforced at larger sizes by retardation and at smaller sizes by nonlocality and other…

光学 · 物理学 2017-12-25 Jamie M. Fitzgerald , Vincenzo Giannini

The kinetic approach is applied to calculate oscillations of a surface plasmon linewidth in a spheroidal metal nanoparticle embedded in any dielectric media. The principal attention is focused on the case, when the free electron path is…

介观与纳米尺度物理 · 物理学 2015-06-05 Nicolas I. Grigorchuk

Here we demonstrate the enhancement of the transverse magneto-optical Kerr effect (TMOKE) signal, in the Otto configuration, due to surface plasmon resonance. We present an architecture where the low index dielectric has a variable…

Plasmonic resonance of a metallic nanostructure results from coherent motion of its conduction electrons driven by incident light. At the resonance, the induced dipole in the nanostructure is proportional to the number of the conduction…

材料科学 · 物理学 2016-04-20 Mingliang Zhang , Hongping Xiang , Xu Zhang , Gang Lu

We analyze nonlinear effects in optically driven arrays of nonlinear metallic nanoparticles. We demonstrate that such plasmonic systems are characterized by a bistable response, and they can support the propagation of dissipative switching…

光学 · 物理学 2012-06-01 Roman E. Noskov , Pavel A. Belov , Yuri S. Kivshar

Asymmetric metal-dielectric nanostructures are demonstrated superior optical properties arise from the combination of strong enhancement of their near fields and controllable scattering characteristics which originate from plasmonic and…

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

The Casimir force between bodies in vacuum can be understood as arising from their interaction with an infinite number of fluctuating electromagnetic quantum vacuum modes, resulting in a complex dependence on the shape and material of the…