Unil Perera, Georgia State University (IMAGE) Georgia State University Caption Unil Perera, a Regents' Professor of Physics and researcher in the Center for Nano-Optics at Georgia State University. Credit Georgia State University 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.