Long-Distance Indirect Excitation of Nanoplasmonic Resonances
Artikel i vetenskaplig tidskrift, 2011
In nanoscopic systems, size, geometry, and arrangement are the crucial determinants of the light-matter interaction and resulting nanoparticles excitation. At optical frequencies, one of the most prominent examples is the excitation of localized surface plasmon polaritons, where the electromagnetic radiation is coupled to the confined charge density oscillations. Here, we show that beyond direct near- and far-field excitation, a long-range, indirect mode of particle excitation is available in nanoplasmonic systems. In particular, in amorphous arrays of plasmonic nanodiscs we find strong collective and coherent influence on each particle from its entire active neighborhood. This dependency of the local field response on excitation conditions at distant areas brings exciting possibilities to engineer enhanced electromagnetic fields through controlled, spatially configured illumination.
Amorphous plasmonics
near-field coupling
hot spot
near-field optics
plasmonic localization
neighbor interaction
Författare
Worawut Khusin
Max-Planck-Gesellschaft
Björn Brian
Chalmers, Teknisk fysik, Bionanofotonik
Jens Dorfmueller
Max-Planck-Gesellschaft
Moritz Esslinger
Max-Planck-Gesellschaft
R. Vogelgesang
Max-Planck-Gesellschaft
Christoph Etrich
Friedrich-Schiller-Universität Jena
C. Rockstuhl
Friedrich-Schiller-Universität Jena
Alexander Dmitriev
Chalmers, Teknisk fysik, Bionanofotonik
Klaus Kern
Max-Planck-Gesellschaft
Ecole Polytechnique Federale de Lausanne (EPFL)
Nano Letters
1530-6984 (ISSN) 1530-6992 (eISSN)
Vol. 11 7 2765-2769Styrkeområden
Nanovetenskap och nanoteknik
Materialvetenskap
Fundament
Grundläggande vetenskaper
Ämneskategorier
Atom- och molekylfysik och optik
DOI
10.1021/nl201043v