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On dipole source representation for laser-generated sound

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conference contribution
posted on 20.04.2010 by Victor V. Krylov
It is normally assumed that at the thermo-optical regime of laser-generated ultrasound in solids the equivalent thermo-optical source can be modelled as a mechanical dipole comprising two horizontal forces applied to the surface in opposite directions. In the present paper this assumption is reexamined on the basis of the rigorous theory that takes into account all acoustical, optical and thermal parameters of a solid material and all geometrical and physical parameters of a laser beam. It is shown that the dipole-source representation is rather limited, especially in respect of generated longitudinal waves. A general criterion has been established under which the dipole-source representation gives predictions with acceptable errors.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

KRYLOV, V.V., 2002. On dipole source representation for laser-generated sound. IN: Schneider, S.C. and Yuhas, D.E. (eds.). Proceedings of the IEEE 2002 International Ultrasonics Symposium, Munich, Germany, 8-11 October 2002, Vol. 1, pp.597-600.

Publisher

© IEEE

Version

VoR (Version of Record)

Publication date

2002

Notes

This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

ISBN

0780375823

ISSN

1051-0117

Language

en

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