DocumentCode
3092329
Title
Direct measurement of SAW dispersion relations in the k-ω domains; numerical and experimental studies
Author
Veres, Istvan A. ; Grunsteidl, C.M. ; Roither, J. ; Burgholzer, Peter ; Berer, Thomas ; Murray, T.W.
Author_Institution
Res. Center for Non-Destruct. Testing GmbH, Linz, Austria
fYear
2013
fDate
21-25 July 2013
Firstpage
687
Lastpage
690
Abstract
We evaluate the dispersion relation of surface acoustic waves by temporally and spatially modulated laser-ultrasound in the presented work. Experimental data are acquired by the combined application of intensity modulated laser-diodes and a spatial light modulator. Numerical simulations obtained from the solution of the coupled heat and wave equations using the finite difference time domain method with a combination of implicit and explicit temporal integration techniques.
Keywords
finite difference time-domain analysis; integration; surface acoustic waves; wave equations; SAW dispersion relations; experimental analysis; finite difference time domain method; heat equations; k-ω domains; modulated laser ultrasound; numerical analysis; spatial light modulator; surface acoustic waves; temporal integration; wave equations; Acoustics; Heating; Interference; Laser excitation; Mathematical model; Propagation; Surface waves;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium (IUS), 2013 IEEE International
Conference_Location
Prague
ISSN
1948-5719
Print_ISBN
978-1-4673-5684-8
Type
conf
DOI
10.1109/ULTSYM.2013.0177
Filename
6724845
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