Optical Nonlinearities in Chalcogenide Glasses and their Applications

Photonics, which uses photons for information and image processing, is labeled as one of the technologies of the 21st century, for which nonlinear op— cal processes provide the key functions of frequency conversion and optical switching. Chalcogenide glasses are based on the chalcogen elements S, Se, and Te. These glasses are formed by the addition of other elements such as Ge, As, Sb, Ga, etc. These glasses are low—phonon energy materials and are generally transparent from the visible to i...