Shaping the surface of multiphase optical materials by ion etching

摘要

Using optical "sitall" (glass-ceramic) as an example, the possibility of the shaping (aspherization) of a surface using a self-contained ion source is considered. It is shown that, when aspheric surfaces are obtained with asphericity of up to 13 mu m, the optical quality of the processed surface is maintained, and the surface microrelief does not exceed 4 angstrom. (c) 2006 Optical Society of America.