Fabrication method of 90-degree domain structures in potassium niobate single crystals

Summary from only given. KNbO/sub 3/ is one of the attractive crystals because of its large birefringence, nonlinearity, high electro-optic constants, and low optical damages. in this paper, we describe artificial fabrication method 90-degree domain structure in the KNbO/sub 3/ single crystals.