Journal of the acoustical society of america vol:100 issue:3 pages:1538-1541
The transient displacement of the surface acoustic wave caused by a transient impulse line source on a sample consisting of a substrate covered by a thin layer is calculated. Starting From the Green's tensor for an anisotropic semi-infinite half-space, the layer, which will introduce dispersion, is considered as a perturbation of this half-space. Numerical results and experimental data, obtained with an all-optical technique, for an isotropic layer on an isotropic half-space are compared and show good agreement. (C) 1996 Acoustical Society of America.