Applied optics is a branch of optics and photonics that specifically focuses on using light for practical purposes. Such uses include collecting light from the sun and converting it to electricity ...

For decades, researchers have been exploring how to store data in glass because of its potential to hold information for a long time—eons—without applying power. A special type of glass that changes ...

Department of Materials, University of Oxford, Oxford OX1 3PH, U.K.