Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 82, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3660193
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- Agence Nationale pour la Recherche [ANR-07-BLAN-303]
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Gigahertz acoustic waves propagating on the surface of a metal halfspace are detected using different all-optical detection schemes, namely, deflectometry and beam distortion detection techniques. Both techniques are implemented by slightly modifying a conventional reflectometric setup. They are then based on the measurement of the reflectivity change but unlike reflectometric measurements, they give access to the sample surface displacement. A semi-analytical model, taking into account optical, thermal, and mechanical processes responsible for acoustic waves generation, allows analyzing the physical content of the detected waveforms. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3660193]
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