Random Laser (IMAGE) Vienna University of Technology Caption Random lasers are powered by a beam of light from above. Random scatterers inside the laser (yellow dots) lead to chaotic emission of light into all directions. Credit Vienna University of Technology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.