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Beyond the Hybridization Effects in Plasmonic Nanoclusters: Diffraction‐Induced Enhanced Absorption and Scattering
Author(s) -
Rahmani Mohsen,
Miroshnichenko Andrey E.,
Lei Dang Yuan,
Luk'yanchuk Boris,
Tribelsky Michael I.,
Kuznetsov Arseniy I.,
Kivshar Yuri S.,
Francescato Yan,
Giannini Vincenzo,
Hong Minghui,
Maier Stefan A.
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201301419
Subject(s) - poynting vector , plasmon , nanoclusters , scattering , near and far field , diffraction , wavelength , materials science , absorption (acoustics) , optics , plane wave , field (mathematics) , optoelectronics , molecular physics , physics , nanotechnology , quantum mechanics , magnetic field , mathematics , pure mathematics
It is demonstrated hererin both theoretically and experimentally that Young's interference can be observed in plasmonic structures when two or three nanoparticles with separation on the order of the wavelength are illuminated simultaneously by a plane wave. This effect leads to the formation of intermediate‐field hybridized modes with a character distinct of those mediated by near‐field and/or far‐field radiative effects. The physical mechanism for the enhancement of absorption and scattering of light due to plasmonic Young's interference is revealed, which we explain through a redistribution of the Poynting vector field and the formation of near‐field subwavelength optical vortices.