What is "potassium niobate"

n. (context inorganic compound English) The salt KNbO₃; its crystals have a large nonlinear optical coefficient, and it find use in the manufacture of lasers; nanowires of the substance have been used to produce tunable coherent light.

Potassium niobate (KNbO) is a perovskite ferroelectric crystal. It has nonlinear optical coefficient properties, making it common in the manufacture of lasers. Nanowires of potassium niobate have been used to produce tunable coherent light. The for potassium niobate is 3000 mg/kg (oral, rat).