Picosecond Laser Ultrasonics Research Articles

Femtosecond laser generation and detection of longitudinal and shear acoustic waves in a sub‐micrometric film

We present experimental and calculation results demonstrating the generation of longitudinal and shear acoustic waves in picosecond laser ultrasonics in an isotropic aluminium plate of 0.54 μm thickness. The waves are detected by an interferometric set-up. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)