Potential Wells (IMAGE) University of Bonn Caption The artist's rendering shows how potential wells are created for the light in the microresonator through heating with an external laser beam (green). Credit Photo: David Dung, Universität Bonn 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.