Illustration of photonic time crystal (IMAGE) Aalto University Caption An illustration of how a 2D photonic time crystal can boost light waves Credit Xuchen Wang / Aalto University Usage Restrictions May be used in publications related to this release with appropriate credit. 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.