Paving the way for new light-powered devices By combining cutting-edge concepts from theoretical physics, researchers from Penn Engineering developed ‘sypersymmetric microlaser arrays’ that are both stable and have high power density. The field of photonics involves the study of new ways to generate and harness light, akin to how many of the devices used in everyday life run on electric current. While photonic devices have the potential to transform the current technology paradigm through increased speed, efficiency, and information density, their broad application is limited by the size, strength, and stability of the light sources, often lasers, in these devices.