ZnO-patterned-film piezoelectric transducers for shear acoustic waves

In current publications, there is no information about the development and use of film piezoelectric transducers for shear waves, though they can be useful (e.g., for manufacturing a gigaHertz band acousto-optic modulator with anisotropic diffraction in LiNbO3. The absence of results in this area is connected with the fact that it is very difficult to deposit the required film because the pattern axis must be oriented in two directions.