International Encyclopedia Of Photochemistry

Photochemistry is concerned with reactions which are' initiated by electronically excited molecules. Such molecules are produced by the absorption of suitable radiation in the visible and near ultraviolet region of the spectrum. A well known example IS the spirogyras, used in photo chromic sunglasses. Another revolutionary application of electronically excited molecular system IS In Laser technology. The fascinating subject of photochemistry is explained in a basic and comprehensive manner in this primer.