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Tuning of Hybrid Oligomers via Nanoscale fs-Laser Reshaping
Sergey Lepeshov, Alexander Krasnok, Ivan Mukhin +5
Various clusters of metallic or dielectric nanoparticles can exhibit sharp Fano resonances originating from at least two modes interference of different spectral width. However, fo…
Multimode directionality in all-dielectric metasurfaces
Yuanqing Yang, Andrey E. Miroshnichenko, Sarah V. Kostinski +4
We demonstrate that spectrally diverse multiple magnetic dipole resonances can be excited in all-dielectric structures lacking rotational symmetry, in contrast to conventionally us…
Interplay of magnetic responses in all-dielectric oligomers to realize magnetic Fano resonances
Ben Hopkins, Dmitry S. Filonov, Andrey E. Miroshnichenko +3
We study the interplay between collective and individual optically-induced magnetic responses in quadrumers made of identical dielectric nanoparticles. Unlike their plasmonic count…
Suppression of scattering for small dielectric particles: an anapole mode and invisibility
Boris Luk`yanchuk, Ramon Paniagua-Dominguez, Arseniy I. Kuznetsov +2
We reveal that an isotropic homogeneous subwavelength particle with a high refractive index can produce ultra-weak total scattering due to vanishing contribution of the electric di…
Q-factor and absorption enhancement for plasmonic anisotropic nanoparticles
Wei Liu, Bing Lei, Andrey E. Miroshnichenko
We investigate the scattering and absorption properties of anisotropic metal-dielectric core-shell nanoparticles. It is revealed that the radially anisotropic dielectric layer can…
The ultimate absorption at light scattering by a single obstacle
Andrey E. Miroshnichenko, Michael I. Tribelsky
Based on fundamental properties of light scattering by a particle we reveal the existence of the ultimate upper limit for the light absorption by any partial mode. First, we obtain…