Surface acoustic wave

Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material, typically a solid such as a crystal or ceramic. These waves are characterized by their ability to propagate along the surface while causing displacements of the surface particles in a direction parallel to the surface. ### Key Characteristics of SAWs: 1. **Propagation**: SAWs travel along the surface, with the amplitude of the wave decreasing exponentially with depth into the material.