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Proceedings Paper

Generation of longitudinal surface acoustic waves by laser pulse
Author(s): Virgilijus Minialga; Stanislovas Sajauskas
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Paper 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

Paper Details

Date Published: 22 May 2002
PDF: 5 pages
Proc. SPIE 4827, Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2002); doi: 10.1117/12.468186
Show Author Affiliations
Virgilijus Minialga, Kaunas Univ. of Technology (Lithuania)
Stanislovas Sajauskas, Kaunas Univ. of Technology (Lithuania)


Published in SPIE Proceedings Vol. 4827:
Fifth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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