Optimal crystal cuts and propagation directions for excitation of acoustic waves in LiNbO3

摘要

Acoustic power flow in a LiNbO3 single crystal was calculated to find the optimal crystal cutting orientation and the wave propagation direction for the efficient excitation of acoustic waves in the crystal. By solving the stiffened Christoffel equations and calculating the acoustic Poynting vectors with piezoelectric effect included, maximum longitudinal acoustic power flow in a 30° Z‐rotated, Y‐cut LiNbO3 crystal was found.