Yang He Cleanroom (IMAGE) University of Rochester Caption Yang He ’20 (PhD), an electrical and computer engineering postdoctoral scholar, stands beside an electron beam lithography system used to develop new microcomb technology. Credit University of Rochester Usage Restrictions None 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.