Guillon, C and Langot, P and Del Fatti, N and Vallee, F and Kirakosyan, A. S. and Shahbazyan, T. V. and Cardinal, T and Treguer, M (2007) Coherent acoustic vibration of metal nanoshells. NANO LETTERS, 7 (1). pp. 138-142.
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Official URL: http://dx.doi.org/10.1021/nl062380d
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.
|Subjects:||Analytical Science > Microscopy and probe methods|
Physical Science > Nanophysics
Physical Science > Nano objects
|Deposited By:||Anuj Seth|
|Deposited On:||09 Jan 2009 11:55|
|Last Modified:||18 Feb 2009 17:51|
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