Acousto-Optics and Applications Acousto-Optic Devices Based on Potassium Rare-Earth Tungstates Laser Crystals

We present a family of original acousto-optical devices. They are based on new acousto-optical materials KRE(WO4)2, where RE = Y, Gd, Yb, Lu. A combination of features such as radiation resistance, optical biaxiality and appreciable acousto-optical figure of merit, makes possible creation of polarization-insensitive modulator with almost 100 % of diffraction efficiency. The deflector with wide angular aperture and broad range of deflection, and collinear tunable filter are also suggested. DOI: 10.12693/APhysPolA.127.75 PACS: 42.70.Hj, 42.79.Jq, 42.60.Fc, 43.35.S