Influence of the pulse energy distribution on the efficiency of ultrasound generation by laser

J.-C. Gonthier; M. Dubois; F. Enguehard; L. Bertrand

doi:doi:10.1051/jp4:19947160

Numéro		J. Phys. IV France Volume 04, Numéro C7, Juillet 1994 8th International Topical Meeting on Photoacoustic and Photothermal Phenomena 8 ITMP³ / 8éme conférence internationale de photoacoustique et photothermique


Page(s)		C7-685 - C7-688
DOI		https://doi.org/10.1051/jp4:19947160

8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP³ / 8éme conférence internationale de photoacoustique et photothermique

J. Phys. IV France 04 (1994) C7-685-C7-688
DOI: 10.1051/jp4:19947160

Influence of the pulse energy distribution on the efficiency of ultrasound generation by laser

J.-C. Gonthier, M. Dubois, F. Enguehard and L. Bertrand

Ecole Polytechnique de Montréal, Département de Génie Physique, C.P. 6079, Succ. Centre-Ville, Montréal, Québec, Canada, H3C 3A7

Abstract
We have conducted both theoretical and experimental studies of the effect of the energy distribution of the ultrasound generating laser pulse on the amplitude of the longitudinal precursor and on the temporal profile of the displacement for single-point, two-points and line-of-points distributions. These preliminary studies show that the agreement between theory and experiment is generally good and that improvement of the amplitude of the precursor is possible.