Suppressed quenching and strong-coupling of Purcell-enhanced single-molecule emission in plasmonic nanocavities
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
An emitter in the vicinity of a metal nanostructure is quenched by its decay through nonradiative channels, leading to the belief in a zone of inactivity for emitters placed within <10 nm of a plasmonic nanostructure. Here we demonstrate and explain why in tightly coupled plasmonic resonators forming nanocavities “quenching is quenched” due to plasmon mixing. Unlike isolated nanoparticles, such plasmonic nanocavities show mode hybridization, which can massively enhance emitter excitation and decay via radiative channels, here experimentally confirmed by laterally dependent emitter placement through DNA-origami. We explain why this enhancement of excitation and radiative decay can be strong enough to facilitate single-molecule strong coupling, as evident in dynamic Rabi-oscillations.
Date Issued
2018-01-17
Date Acceptance
2017-10-18
Citation
ACS Photonics, 2018, 5 (1), pp.186-191
ISSN
2330-4022
Publisher
American Chemical Society
Start Page
186
End Page
191
Journal / Book Title
ACS Photonics
Volume
5
Issue
1
Copyright Statement
© 2017 American Chemical Society
Subjects
Science & Technology
Technology
Physical Sciences
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Optics
Physics, Applied
Physics, Condensed Matter
Science & Technology - Other Topics
Materials Science
Physics
nanoplasmonics
nanophotonics
light-matter strong coupling
fluorescence enhancement
quenching
ROOM-TEMPERATURE
QUANTUM DOTS
DECAY-RATE
NANOPARTICLES
SCATTERING
EMITTERS
MODES
physics.optics
physics.optics
0205 Optical Physics
0206 Quantum Physics
0906 Electrical and Electronic Engineering
Publication Status
Published
Date Publish Online
2017-10-18