Technology changes our life. Various applications result from studying one of the key technologies of the 21st century: Optics and photonics. Scientists working in the KIT “Optics & Photonics” Focus will explain how the understanding of the relationships between matter and light changes our everyday life. On Wednesday, January 23, 2013, 18.30 hrs, they will present their work at the Karlsruhe city hall under the heading of “Faszination Licht” (fascination light).