Quantum Light (IMAGE) Graphene Flagship Caption This is an artist's impression of single photons emitted from quantum dots in supported layered semiconductors. Credit Pawel Latawiec/Harvard University Usage Restrictions Only with appropriate credit 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.