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Article Dans Une Revue Applied Physics Letters Année : 2014

Evidence of guided acoustic waves propagating along a micrometric fiber

Résumé

We propose a contactless optical method to determine the dispersion curves of guided acoustic modes propagating along a micrometric fiber. Subnanosecond laser pulses are used to generate guided acoustic waves, and an optical probe is used for measuring the ultrasonic displacements at the fiber surface. The test sample is an aluminum fiber of diameter 33 μm. The comparison between the experimental and theoretical dispersion curves is presented.
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Dates et versions

hal-03347180 , version 1 (17-09-2021)

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Haithem Khelfa, Denis Mounier, Christophe Poilâne, Pascal Picart. Evidence of guided acoustic waves propagating along a micrometric fiber. Applied Physics Letters, 2014, 105 (16), pp.161906. ⟨10.1063/1.4899195⟩. ⟨hal-03347180⟩
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