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.


Worawut Khusin

Björn Brian

Chalmers, Teknisk fysik, Bionanofotonik

Jens Dorfmueller

Moritz Esslinger

R. Vogelgesang

Christoph Etrich

Alexander Dmitriev

Chalmers, Teknisk fysik, Bionanofotonik

Klaus Kern

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 11 2765-2769


Nanovetenskap och nanoteknik



Grundläggande vetenskaper


Atom- och molekylfysik och optik