LiTaO <sub>3</sub>: a Multifunctional Crystal for Opto- and Acoustoelectronics
Bulk acoustic wave resonators. The possibility of direct electron beam repolarization of LiTaO <sub>3</sub> crystals was used for the fabrication of ferroelectric domain structures sizing from few nanometers to tenth micrometers. The regular domain structures in the LiTaO <sub>3</sub> crystal were used as an optical diffraction grating and for the generation of second-harmonic optical radiation.