Long-Distance Indirect Excitation of Nanoplasmonic Resonances
Journal article, 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
Author
Worawut Khusin
Max Planck Society
Björn Brian
Chalmers, Applied Physics, Bionanophotonics
Jens Dorfmueller
Max Planck Society
Moritz Esslinger
Max Planck Society
R. Vogelgesang
Max Planck Society
Christoph Etrich
Friedrich Schiller University Jena
C. Rockstuhl
Friedrich Schiller University Jena
Alexander Dmitriev
Chalmers, Applied Physics, Bionanophotonics
Klaus Kern
Max Planck Society
Swiss Federal Institute of Technology in Lausanne (EPFL)
Nano Letters
1530-6984 (ISSN) 1530-6992 (eISSN)
Vol. 11 7 2765-2769Areas of Advance
Nanoscience and Nanotechnology
Materials Science
Roots
Basic sciences
Subject Categories
Atom and Molecular Physics and Optics
DOI
10.1021/nl201043v