Plasmonic electromagnetic hot spots temporally addressed by photoinduced molecular displacemen

L. Juan Mathieu; Jerome Plain; Renaud Bachelot; Alexandre Vial; Pascal Royer; Stephen K. Gray; Jason M. Montgomery; Gary P. Wiederrechf

doi:10.1021/jp8114435

Plasmonic electromagnetic hot spots temporally addressed by photoinduced molecular displacemen

L. Juan Mathieu, Jerome Plain^*, Renaud Bachelot, Alexandre Vial, Pascal Royer, Stephen K. Gray, Jason M. Montgomery, Gary P. Wiederrechf

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We report the observation of temporally varying electromagnetic hot spots in plasmonic nanostructures. Changes in the field amplitude, position, and spatial features are induced by embedding plasmonic silver nanorods in the photoresponsive azo-polymer. This polymer undergoes cis-trans isomerization and wormlike transport within resonant optical fields, producing a time-varying local dielectric environment that alters the locations where electromagnetic hot spots are produced. Finite-difference time-domain and Monte Carlo simulations that model the induced field and corresponding material response are presented to aid in the interpretation of the experimental results. Evidence for propagating plasmons induced at the ends of the rods is also presented.

Original language	English
Pages (from-to)	4647-4651
Number of pages	5
Journal	Journal of Physical Chemistry A
Volume	113
Issue number	16
DOIs	https://doi.org/10.1021/jp8114435
Publication status	Published - 23 Apr 2009

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title = "Plasmonic electromagnetic hot spots temporally addressed by photoinduced molecular displacemen",

abstract = "We report the observation of temporally varying electromagnetic hot spots in plasmonic nanostructures. Changes in the field amplitude, position, and spatial features are induced by embedding plasmonic silver nanorods in the photoresponsive azo-polymer. This polymer undergoes cis-trans isomerization and wormlike transport within resonant optical fields, producing a time-varying local dielectric environment that alters the locations where electromagnetic hot spots are produced. Finite-difference time-domain and Monte Carlo simulations that model the induced field and corresponding material response are presented to aid in the interpretation of the experimental results. Evidence for propagating plasmons induced at the ends of the rods is also presented.",

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AU - Mathieu, L. Juan

AU - Plain, Jerome

AU - Bachelot, Renaud

AU - Vial, Alexandre

AU - Royer, Pascal

AU - Gray, Stephen K.

AU - Montgomery, Jason M.

AU - Wiederrechf, Gary P.

PY - 2009/4/23

Y1 - 2009/4/23

N2 - We report the observation of temporally varying electromagnetic hot spots in plasmonic nanostructures. Changes in the field amplitude, position, and spatial features are induced by embedding plasmonic silver nanorods in the photoresponsive azo-polymer. This polymer undergoes cis-trans isomerization and wormlike transport within resonant optical fields, producing a time-varying local dielectric environment that alters the locations where electromagnetic hot spots are produced. Finite-difference time-domain and Monte Carlo simulations that model the induced field and corresponding material response are presented to aid in the interpretation of the experimental results. Evidence for propagating plasmons induced at the ends of the rods is also presented.

AB - We report the observation of temporally varying electromagnetic hot spots in plasmonic nanostructures. Changes in the field amplitude, position, and spatial features are induced by embedding plasmonic silver nanorods in the photoresponsive azo-polymer. This polymer undergoes cis-trans isomerization and wormlike transport within resonant optical fields, producing a time-varying local dielectric environment that alters the locations where electromagnetic hot spots are produced. Finite-difference time-domain and Monte Carlo simulations that model the induced field and corresponding material response are presented to aid in the interpretation of the experimental results. Evidence for propagating plasmons induced at the ends of the rods is also presented.

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SP - 4647

EP - 4651

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 16

ER -

Plasmonic electromagnetic hot spots temporally addressed by photoinduced molecular displacemen

Abstract

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