Optical storage on a dielectric ternary crystal doped with europium

Abstract In this work we study the thermoluminescent properties of europium doped KCl 0.5 KBr 0.25 RbBr 0.25 under β-radiation exposure. The glow curve shows light emissions for two temperature regions around 140 and 332 °C, which increase with the time of exposure, in both regions. Light emission of the second region increases linearly with the time. In each region there is a very small fading, showing that this crystal has high capacity to store optical energy.