Nanoscale imaging of local few-femtosecond near-field dynamics within a single plasmonic nanoantenna.
Mårsell, Erik LU ; Losquin, Arthur LU ; Svärd, Robin LU
; Miranda, Miguel
LU
; Guo, Chen
LU
; Harth, Anne
LU
; Lorek, Eleonora
LU
; Mauritsson, Johan
LU
; Arnold, Cord
LU
and Xu, Hongxing
LU
, et al.
(2015)
In Nano Letters
15(10).
p.6601-6608
- Abstract
- The local enhancement of few-cycle laser pulses by plasmonic nanostructures opens up for spatiotemporal control of optical interactions on a nanometer and few-femtosecond scale. However, spatially resolved characterization of few-cycle plasmon dynamics poses a major challenge due to the extreme length and time scales involved. In this letter, we experimentally demonstrate local variations in the dynamics during the few strongest cycles of plasmon-enhanced fields within individual rice-shaped silver nanoparticles. This was done using 5.5 fs laser pulses in an interferometric time-resolved photoemission electron microscopy setup. The experiments are supported by finite-difference time-domain simulations of similar silver structures. The... (More)
- The local enhancement of few-cycle laser pulses by plasmonic nanostructures opens up for spatiotemporal control of optical interactions on a nanometer and few-femtosecond scale. However, spatially resolved characterization of few-cycle plasmon dynamics poses a major challenge due to the extreme length and time scales involved. In this letter, we experimentally demonstrate local variations in the dynamics during the few strongest cycles of plasmon-enhanced fields within individual rice-shaped silver nanoparticles. This was done using 5.5 fs laser pulses in an interferometric time-resolved photoemission electron microscopy setup. The experiments are supported by finite-difference time-domain simulations of similar silver structures. The observed differences in the field dynamics across a single particle do not reflect differences in plasmon resonance frequency or dephasing time. They instead arise from a combination of retardation effects and the coherent superposition between multiple plasmon modes of the particle, inherent to a few-cycle pulse excitation. The ability to detect and predict local variations in the few-femtosecond time evolution of multi-mode coherent plasmon excitations in rationally synthesized nanoparticles can be used in the tailoring of nanostructures for ultrafast and nonlinear plasmonics. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8038988
- author
- Mårsell, Erik
LU
; Losquin, Arthur
LU
; Svärd, Robin
LU
; Miranda, Miguel
LU
; Guo, Chen
LU
; Harth, Anne
LU
; Lorek, Eleonora
LU
; Mauritsson, Johan
LU
; Arnold, Cord
LU
and Xu, Hongxing
LU
, et al. (More)
- Mårsell, Erik
LU
; Losquin, Arthur
LU
; Svärd, Robin
LU
; Miranda, Miguel
LU
; Guo, Chen
LU
; Harth, Anne
LU
; Lorek, Eleonora
LU
; Mauritsson, Johan
LU
; Arnold, Cord
LU
; Xu, Hongxing
LU
; L'Huillier, Anne
LU
and Mikkelsen, Anders
LU
(Less)
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nano Letters
- volume
- 15
- issue
- 10
- pages
- 6601 - 6608
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:26375959
- wos:000363003100047
- scopus:84944339340
- ISSN
- 1530-6992
- DOI
- 10.1021/acs.nanolett.5b02363
- language
- English
- LU publication?
- yes
- id
- 0a0cdca4-ab0d-4516-833d-5bc56769357c (old id 8038988)
- date added to LUP
- 2016-04-01 10:25:05
- date last changed
- 2023-11-09 20:22:01
@article{0a0cdca4-ab0d-4516-833d-5bc56769357c,
abstract = {{The local enhancement of few-cycle laser pulses by plasmonic nanostructures opens up for spatiotemporal control of optical interactions on a nanometer and few-femtosecond scale. However, spatially resolved characterization of few-cycle plasmon dynamics poses a major challenge due to the extreme length and time scales involved. In this letter, we experimentally demonstrate local variations in the dynamics during the few strongest cycles of plasmon-enhanced fields within individual rice-shaped silver nanoparticles. This was done using 5.5 fs laser pulses in an interferometric time-resolved photoemission electron microscopy setup. The experiments are supported by finite-difference time-domain simulations of similar silver structures. The observed differences in the field dynamics across a single particle do not reflect differences in plasmon resonance frequency or dephasing time. They instead arise from a combination of retardation effects and the coherent superposition between multiple plasmon modes of the particle, inherent to a few-cycle pulse excitation. The ability to detect and predict local variations in the few-femtosecond time evolution of multi-mode coherent plasmon excitations in rationally synthesized nanoparticles can be used in the tailoring of nanostructures for ultrafast and nonlinear plasmonics.}},
author = {{Mårsell, Erik and Losquin, Arthur and Svärd, Robin and Miranda, Miguel and Guo, Chen and Harth, Anne and Lorek, Eleonora and Mauritsson, Johan and Arnold, Cord and Xu, Hongxing and L'Huillier, Anne and Mikkelsen, Anders}},
issn = {{1530-6992}},
language = {{eng}},
number = {{10}},
pages = {{6601--6608}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Nano Letters}},
title = {{Nanoscale imaging of local few-femtosecond near-field dynamics within a single plasmonic nanoantenna.}},
url = {{http://dx.doi.org/10.1021/acs.nanolett.5b02363}},
doi = {{10.1021/acs.nanolett.5b02363}},
volume = {{15}},
year = {{2015}},
}