Étude par microscopie acoustique de l'effet d'atténuation transversale et longitudinale sur les modes de propagation dans les structures monocouches et multicouches

For these materials the calculations have been made over a large frequency range (50 MHz to 3.5 GHz) and for coating thicknesses from 0.5 μm to 150 μm. In the case of multilayer structures, we have determined the variations in speed of the different propagation modes as functions of frequency and the attenuation coefficient. To cite this article: T. Tahraoui et al., C. R. Physique 10 (2009).