Journal ArticleDOI
Superscattering of Light from Core–Shell Nonlocal Plasmonic Nanoparticles
Yanlin Huang,Lei Gao +1 more
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TLDR
In this article, the authors studied the scattering properties of coated nanoparticles with high-permittivity core and nonlocal plasmonic shell with full-wave nonlocal Mie theory.Abstract:
We study the scattering properties of coated nanoparticles with high-permittivity core and nonlocal plasmonic shell with full-wave nonlocal Mie theory. Both electric and artificial magnetic resonances of different orders are supported simultaneously for such coated particles. By properly engineering the aspect ratio, we can achieve not only the overlapping of electric dipole (ED) and magnetic dipole (MD) modes but also that of electric quadrupole (EQ) and magnetic quadrupole (MQ). We numerically demonstrate that there are two overlapping ways to obtain the superscattering state for core–shell nanoparticles. Furthermore, we show that the nonlocality becomes less important in the scattering of coated nanoparticles with ultrathin shell thickness but large total size due to the fact that nonlocality is essentially a surface effect.read more
Citations
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Nonlocal optical response in metallic nanostructures
TL;DR: The nonlocal hydrodynamic model and the recently introduced generalized nonlocal optical response (GNOR) model are thoroughly presented and the influence of nonlocal response on plasmonic excitations is studied in key metallic geometries.
Journal ArticleDOI
Anomalies in light scattering
TL;DR: In this article, a unified description of such exotic scattering phenomena and the origin of all these effects can be traced back to the properties of poles and zeros of the underlying scattering matrix are established.
Journal ArticleDOI
Molecular fluorescence enhancement in plasmonic environments: exploring the role of nonlocal effects
TL;DR: Experimental measurements of fluorescence constitute a novel, more sensitive probe for assessing the validity of state-of-the-art nonclassical theories in emitter-plasmon hybrids.
Journal ArticleDOI
Nonlocal optical response in metallic nanostructures
TL;DR: In this article, the nonlocal hydrodynamic model and the recently introduced generalized nonlocal optical response (GNOR) model are presented and a broad overview of the studies and effects of nonlocal response in metallic nanostructures is provided.
Journal ArticleDOI
Nonscattering-to-Superscattering Switch with Phase-ChangeMaterials
TL;DR: In this paper, phase change materials (PCMs) can switch between different crystalline states as a function of an external bias, offering a pronounced change of their dielectric function.
References
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Journal ArticleDOI
A hybridization model for the plasmon response of complex nanostructures.
TL;DR: A simple and intuitive picture that describes the plasmon response of complex nanostructures of arbitrary shape is presented, an electromagnetic analog of molecular orbital theory, that can be understood as the interaction or "hybridization" of elementary plasmons supported by nanostructure of elementary geometries.
Journal ArticleDOI
Probing the Ultimate Limits of Plasmonic Enhancement
Cristian Ciracì,Ryan T. Hill,Jack J. Mock,Yaroslav A. Urzhumov,Antonio I. Fernández-Domínguez,Stefan A. Maier,John B. Pendry,Ashutosh Chilkoti,David R. Smith +8 more
TL;DR: It is found that the dominant limiting factor is not the resistive loss of the metal, but rather the intrinsic nonlocality of its dielectric response, which has implications for the ultimate performance of nanophotonic systems.
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Tailoring Directional Scattering through Magnetic and Electric Resonances in Subwavelength Silicon Nanodisks
Isabelle Staude,Andrey E. Miroshnichenko,Manuel Decker,Nche T. Fofang,Sheng Liu,Edward Gonzales,Jason Dominguez,Ting S. Luk,Dragomir N. Neshev,Igal Brener,Yuri S. Kivshar +10 more
TL;DR: It is demonstrated theoretically and experimentally that the interference of electric and magnetic optically induced modes in individual subwavelength silicon nanodisks can lead to the suppression of resonant backscattering and to enhanced resonant forward scattering of light.
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Magnetic light
TL;DR: It is experimentally demonstrated for the first time that spherical silicon nanoparticles have strong magnetic dipole resonance, which can be continuously tuned throughout the whole visible spectrum varying particle size and visually observed by means of dark-field optical microscopy.
Journal ArticleDOI
Directional visible light scattering by silicon nanoparticles
TL;DR: It is shown that directivity of the far-field radiation pattern of single silicon spheres can be strongly dependent on the light wavelength and the nanoparticle size.