Feature

Optical coatings: add-ons or star performers?

Ian M. Thomas

The "sol-gel" process is one in which the final product is obtained from reactive precursor materials by chemical or thermal means. The term sol-gel is derived from the fact that the precursor materials are initially prepared in solution or colloidal suspension (SOL) and this solution goes through a gelling stage (GEL) prior to conversion to the final product.

Publish Date: 01 August 1986