Lumped oscillations of a nanofilm at adhesion bond

T. Pezeril; N. Chigarev; D. Mounier; S. Gougeon; P. Ruello; J.-M. Breteau; P. Picart; V. Gusev

doi:10.1140/epjst/e2008-00429-1

EPJ

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2017 Impact factor 1.947

Special Topics

Eur. Phys. J. Special Topics 153, 207-210 (2008)
https://doi.org/10.1140/epjst/e2008-00429-1

Lumped oscillations of a nanofilm at adhesion bond

T. Pezeril¹, N. Chigarev¹, D. Mounier¹, S. Gougeon¹, P. Ruello¹, J.-M. Breteau¹, P. Picart² and V. Gusev¹

¹ LPEC, UMR CNRS 6087, Université du Maine, 72085 Le Mans, France
² LAUM, UMR CNRS 6613, Université du Maine, 72085 Le Mans, France

Abstract

Femtosecond pump-probe laser technique has been applied for the diagnostics of a film adhesion to a substrate. A low frequency motion additional to acoustic vibrational modes of the film has been detected and related to film oscillation as a lumped mass element at a weak adhesion bond. The measurements of this low-frequency provide information on the strength of the interface. Long life time of the observed oscillation has remained unexplained.

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