1. Generation of elastic waves by laser impact

Elastic waves, also known as acoustic waves or ultrasonic waves, are material waves that require mechanical displacement $\vec{u}$ . In an unlimited isotropic solid, two waves can propagate: a longitudinal wave whose polarization ${\vec{u}}_{L}$ is parallel to the direction of propagation, and a transverse wave whose polarization ${\vec{u}}_{T}$ is perpendicular to the direction...

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Generation of elastic waves by laser impact

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page Optical generation and detection of elastic waves

Optical detection of mechanical displacements

References

(1) - ROYER (D.), DIEULESAINT (E.) - Ondes élastiques dans les solides - . Tome 1 : Propagation libre et guidée. 1996, Dunod. Tome 2 : Génération. Interaction acousto-optique. Applications. 1999, Dunod.
(2) - SAPRIEL (J.) - Ultrasons - . Techniques...