Figure 5.

The acoustic wave modes shapes and their X-component of displacement ($\mathsf{\mu }\mathrm{m}$). (a–c) Anti-resonance of Rayleigh mode. (d–f) Anti-Resonance of Sezawa mode. (a,d) When $h_1/a=0.6$. (b,e) When $h_1/a=0.8$ and (c,f) when $h_1/a=1.0$.