Generation of longitudinal surface acoustic waves by laser pulse

Virgilijus Minialga; Stanislovas Sajauskas

doi:10.1117/12.468186

22 May 2002 Generation of longitudinal surface acoustic waves by laser pulse

Virgilijus Minialga, Stanislovas Sajauskas

Proceedings Volume 4827, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (2002) https://doi.org/10.1117/12.468186
Event: Fifth International Conference on Vibration Measurements by Laser Techniques, 2002, Ancona, Italy

Abstract

The experimental results of excitation of longitudinal surface acoustic waves (LSAW) in solid isotropic bodies by ruby laser pulse are presented. The dependence of generation efficiency from excitation deepness under surface of propagation was investigated. Experimental measurements confirmed that LSAWs of 1 .8 MHz frequency have maximum propagation energy in (1 .5 - 2)? deepness (where ? is wavelength in solid body). It was shown that using laser pulses we can generate with high efficiency LSAW from distance in solid bodies without special processing of their surfaces. The Poisson's ratio coefficient of bodies was 0.26

Citation Download Citation

Virgilijus Minialga and Stanislovas Sajauskas "Generation of longitudinal surface acoustic waves by laser pulse", Proc. SPIE 4827, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2002); https://doi.org/10.1117/12.468186

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