Coherent Acoustic Vibration of Metal Nanoshells
KIRAKOSYAN, A. S.
Department of Physics and Computational, Center for Molecular Structure and Interactions
Department of Physics and Computational, Center for Molecular Structure and Interactions
SHAHBAZYAN, T. V.
Department of Physics and Computational, Center for Molecular Structure and Interactions
< Reduce
Department of Physics and Computational, Center for Molecular Structure and Interactions
Language
en
Article de revue
This item was published in
Nano Letters. 2007-01, vol. 7, p. 138
American Chemical Society
English Abstract
Using time-resolved pump-probe spectroscopy, we have performed the first investigation of the vibrational modes of gold nanoshells. The fundamental isotropic mode launched by a femtosecond pump pulse manifests itself in a ...Read more >
Using time-resolved pump-probe spectroscopy, we have performed the first investigation of the vibrational modes of gold nanoshells. The fundamental isotropic mode launched by a femtosecond pump pulse manifests itself in a pronounced time-domain modulation of the differential transmission probed at the frequency of nanoshell surface plasmon resonance. The modulation amplitude is significantly stronger, and the period is longer than that in a gold nanoparticle of the same overall size, in agreement with theoretical calculations. This distinct acoustical signature of nanoshells provides a new and efficient method for identifying these versatile nanostructures and for studying their mechanical and structural properties.Read less <
Origin
Hal imported