22 May 2002 Generation of longitudinal surface acoustic waves by laser pulse
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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
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Virgilijus Minialga, Virgilijus Minialga, Stanislovas Sajauskas, 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); doi: 10.1117/12.468186; https://doi.org/10.1117/12.468186
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