Coherent acoustic vibration of metal nanoshells
Mesoscale and Nanoscale Physics
2015-06-25 v1 Materials Science
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 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 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.
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Cite
@article{arxiv.cond-mat/0701224,
title = {Coherent acoustic vibration of metal nanoshells},
author = {C. Guillon and P. Langot and N. Del Fatti and F. Vallee and A. S. Kirakosyan and T. V. Shahbazyan and T. Cardinal and M. Treguer},
journal= {arXiv preprint arXiv:cond-mat/0701224},
year = {2015}
}
Comments
5 pages, 3 figures