Investigation of Attenuation of High-Frequency Elastic Waves when Passing Acoustic Binding Layer of Two Crystals

The propagation of a longitudinal elastic wave through an acoustic binding layer between two crystals is considered. It is shown that under the assumption that there is no significant divergence of elastic waves, the amplitude of the passed wave decreases due to its splitting into longitudinal and transverse waves, as well as due to the absorption of the elastic wave in the binding layer. The effect of reflection of longitudinal elastic waves and their absorption on the attenuation of the wave passing through the crystal interface for two binding materials: water and indium is appreciated.