Anomalous spectral shifts in plasmonic nano-cavities
File(s)
Published version
Author(s)
Type
Conference Paper
Abstract
Nanoplasmonics have the ability to confine light in extremely small nano-cavities.
We show using a theoretical model, numerical calculations and measurements that for these
tightly-coupled nanoplasmonic structures, the correlation between the field enhancement (near-
field) resonance and the radiative (far-field) resonance breaks down. This dissociation is determined
by the nanocavity’s geometry. The anomalous behaviour of plasmonic nanocavities is
of significant importance for active and quantum plasmonics, where extreme nano-cavities are
essential to observe strong coupling.
We show using a theoretical model, numerical calculations and measurements that for these
tightly-coupled nanoplasmonic structures, the correlation between the field enhancement (near-
field) resonance and the radiative (far-field) resonance breaks down. This dissociation is determined
by the nanocavity’s geometry. The anomalous behaviour of plasmonic nanocavities is
of significant importance for active and quantum plasmonics, where extreme nano-cavities are
essential to observe strong coupling.
Date Issued
2016-07-25
Date Acceptance
2016-04-22
Copyright Statement
© the authors
Sponsor
Engineering & Physical Science Research Council (E
The Royal Society
Engineering and Physical Sciences Research Council
Grant Number
RG72590
IE151097
EP/L027151/1
Source
META’16, The 7th International Conference on Metamaterials, Photonic Crystals and Plasmonics (invited)
Start Date
2016-07-25
Finish Date
2016-07-28
Coverage Spatial
Malaga, Spain