Diffraction of Unpolarized Radiation in Acousto-Optic Cells Based on Biaxial Crystals with Phased-Array Transducers

Using as an example rhombic crystal TI3AsS4, we investigated the characteristics of anisotropic diffraction in biaxial crystals in an acoustic field created by a phased-array transducer with antiphase excitation of adjacent sections. The main attention is paid to the peculiarities of frequency dependences of optimal angles for different cuts of the crystal. The feasibility of using phased-array piezoelectric transducers to improve the performance of non-polarized radiation control devices is shown. In particular, a non-polarized radiation deflector, which significantly exceeds the existing serial analogues in its characteristics is proposed.