Acoustic waves in LiNbO3/SiO2/water/silicon rubber structures

This paper studies acoustic waves in a water layer enclosed between the YZ-LiNbO₃ substrate coated with a thin SiO₂ layer and the half-infinite domain occupied by silicone rubber. The plane wave spectrum is computed. Numerical estimations are made of the COM-parameters describing a periodic grating deposited on the LiNbO₃ substrate under the SiO₂ layer. The dependence of the COM-parameters is investigated on characteristics and conditions specifying the structure.