[3] Nanowires of potassium niobate have been used to produce tunable coherent light.

On cooling from high temperature, KNbO3 undergoes a series of structural phase transitions.

In addition to research in electronic memory storage,[4] potassium niobate is used in resonant doubling.

[5] This technique allows small infrared lasers to convert output into blue light, a critical technology for the production of blue lasers and technology dependent upon them.

Potassium niobate has been found useful in many different areas of materials science,[4] including properties of lasers,[5] quantum teleportation,[6] and it has been used to study the optical properties of particulate composite materials.