Nonlinear materials create new colors of light

Optical materials are a bonanza to the laser and electrooptics industry. What may look like an ordinary piece of glass can work wonders when properly cut, coated, and installed in an optical system. Nonlinear optical materials such as KT¥(potassium titanyl phosphate) and potassium and/or lithium niobate are especially wonderful because they can change the frequency and thereby the wavelength of laser light. This characteristic allows optical engineers to create colors that may be more approp