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.

Författare

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 7 2765-2769

Styrkeområden

Nanovetenskap och nanoteknik

Materialvetenskap

Fundament

Grundläggande vetenskaper

Ämneskategorier

Atom- och molekylfysik och optik

DOI

10.1021/nl201043v

Mer information

Skapat

2017-10-07