Single Photons from a Silicon Chip (IMAGE) Helmholtz-Zentrum Dresden-Rossendorf Caption Schematic representation of a single defect in a silicon wafer created by the implantation of carbon atoms, which emits single photons in the telecom O-band (wavelength range: 1260 to 1360 nanometers) coupled to an optical fiber. Credit HZDR/Juniks 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.