{Reference Type}: Journal Article
{Title}: Specific directions of ultrasound propagation in double potassium tungstates for light modulation.
{Author}: Mazur MM;Mazur LI;Pozhar VE;
{Journal}: Ultrasonics
{Volume}: 73
{Issue}: 0
{Year}: 01 2017
{Factor}: 4.062
{DOI}: 10.1016/j.ultras.2016.08.008
{Abstract}: Acousto-optical characteristics of double potassium tungstates are analyzed and specific directions for light modulation are found. First, an important subgroup of elasto-optic coefficients of KYb(WO4)2 and KLu(WO4)2 crystals are calculated with use of experimental data. It is revealed that with proper choice of ultrasound direction the acousto-optical figure-of-merit approximately 2 times exceeds the maximum value detected in previous experiments. Another unique direction is determined, which permits modulation of randomly polarized light. The elasto-optic characteristics of KYb(WO4)2 and KLu(WO4)2 crystals are compared to those of previously investigated materials of the same crystal group: KY(WO4)2, KGd(WO4)2.