Polaritons (IMAGE) ETH Zurich Caption A polaron (orange) is formed amidst the electrons (violet) inside a solid. Credit ETH Zurich / Meinrad Sidler Usage Restrictions Usage restricted to reporting this paper by Sibler et al. 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.