Published online by Cambridge University Press: 21 February 2011
The impregnation of metallic oxides in ceramic bodies to convey information is as old as civilization itself. But unlike the potters of the past, whose purpose was mainly decorative, ours is to control the direction and the speed of traveling light. This may have practical uses with respect Optical waveguides, for integrated optic devices, and micro images for information storage. The ceramics we use are Porous Vycor Glass (PVG) and aerogels made from solgels, both composed mainly of SiO2.