Ultra-directional forward scattering by individual core-shell nanoparticles
TLDR
In this paper, the angular scattering properties of individual core-shell nanoparticles that support simultaneously both electric and optically-induced magnetic resonances of different orders were studied, and it was shown that the directionality of the forward scattering can be further improved through the interferences of higher order electric and magnetic modes.Abstract:
We study the angular scattering properties of individual core-shell nanoparticles that support simultaneously both electric and optically-induced magnetic resonances of different orders. In contrast to the approach to suppress the backward scattering and enhance the forward scattering relying on overlapping electric and magnetic dipoles, we reveal that the directionality of the forward scattering can be further improved through the interferences of higher order electric and magnetic modes. Since the major contributing electric and magnetic responses can be tuned to close magnitudes, ultra-directional forward scattering can be achieved by single nanoparticles without compromising the feature of backward scattering suppression, which may offer new opportunities for nanoantennas, photovoltaic devices, bio-sensing and many other interdisciplinary researches.read more
Citations
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Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling
Yao Zhai,Yaoguang Ma,Sabrina N. David,Dongliang Zhao,Runnan Lou,Gang Tan,Ronggui Yang,Xiaobo Yin +7 more
TL;DR: A metamaterial composed of a polymer layer embedded with microspheres, backed with a thin layer of silver, which shows a noontime radiative cooling power of 93 watts per square meter under direct sunshine is constructed.
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Invited article: Broadband highly-efficient dielectric metadevices for polarization control
Sergey Kruk,Ben Hopkins,Ivan I. Kravchenko,Andrey E. Miroshnichenko,Dragomir N. Neshev,Yuri S. Kivshar +5 more
TL;DR: In this article, the generalized Huygens principle was used to superpose the scattering contributions from several electric and magnetic multipolar modes of the constituent meta-atoms to achieve destructive interference in reflection over a large spectral bandwidth.
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Multipolar nonlinear nanophotonics
TL;DR: In this paper, the authors review the advances in the recently emerged field of multipolar nonlinear nanophotonics, starting from earlier relevant studies of metallic and metal-dielectric structures supporting localized plasmonic resonances, and then discussing the latest results for all- dielectric nanostructures driven by Mie-type multipolar resonances and optically induced magnetic response.
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Generalized Kerker effects in nanophotonics and meta-optics [Invited]
Wei Liu,Yuri S. Kivshar +1 more
TL;DR: In this article, the authors review the physics and various manifestations of the generalized Kerker effect, including the progress in the emerging field of meta-optics that focuses on interferences of electromagnetic multipoles of different orders and origins.
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A generalized Kerker condition for highly directive nanoantennas
TL;DR: A generalized Kerker condition is studied in the example of a nanoring nanoantenna supporting electric dipole and electric quadrupole moments.
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