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research article

Time-Resolved Photodynamics of Triangular-Shaped Silver Nanoplates

Bonacina, Luigi  
•
Callegari, Andrea  
•
Bonati, Camilla  
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2006
Nano Letters

The authors measured the ultrafast response of triangular silver nanoparticles upon femtosecond excitation of their plasmon resonance. After a fast electron relaxation, the signature of a bimodal mech. vibration of the particle is apparent as a spectral modulation. The authors identify the two lowest frequency, totally sym. vibrations of the particle as responsible for this modulation, through their influence on the plasmon peak position and width, in full agreement with the results of a variational elastodynamic model that is also presented. From the anal. of the phase the authors conclude that thermal expansion and electron pressure, resp., are responsible for the excitation of the two vibrations. [on SciFinder (R)]

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Type
research article
DOI
10.1021/nl052131+
Web of Science ID

WOS:000235532400002

Author(s)
Bonacina, Luigi  
•
Callegari, Andrea  
•
Bonati, Camilla  
•
van Mourik, Frank  
•
Chergui, Majed  
Date Issued

2006

Published in
Nano Letters
Volume

6

Issue

1

Start page

7

End page

10

Subjects

Thermal expansion (laser induced; ultrafast response of triangular silver nanoparticles upon femtosecond excitation of their plasmon resonance); Laser radiation; Nanoparticles; Photoexcitation; Plasmon; Surface plasmon resonance (ultrafast response of triangular silver nanoparticles upon femtosecond excitation of their plasmon resonance)

•

plasmon resonance femtosecond excitation triangular silver nanoparticle

Note

CAN 144:179709

73-5

Optical, Electron, and Mass Spectroscopy and Other Related Properties

Laboratoire de Spectroscopie Ultrarapide,Ecole Polytechnique Federale de Lausanne (EPFL),Lausanne,Switz.

Journal

written in English.

7440-22-4 (Silver) Role: PEP (Physical, engineering or chemical process), PYP (Physical process), PROC (Process) (nanoparticles; ultrafast response of triangular silver nanoparticles upon femtosecond excitation of their plasmon resonance)

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSU  
Available on Infoscience
May 31, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/7470
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