Pucks under microscope (IMAGE) Simon Fraser University Caption An optical microscope image of an array of integrated photonic devices, used to perform the first all-optical single-spin measurement in silicon. Tens of thousands of such ‘micropuck’ devices were fabricated on a single silicon photonic chip. Credit Photonic Usage Restrictions One time use License Original 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.