John E. Bowers is an American physicist, engineer, researcher and educator. He is the Fred Kavli Chair in Nanotechnology, the director of the Institute for Energy Efficiency and a distinguished professor in the Departments of Electrical and Computer Engineering and Materials at University of California, Santa Barbara. He was the deputy director of American Institute of Manufacturing of Integrated Photonics from 2015 to 2022.Bowers' research is focused on silicon photonic integrated circuits for fiber optic communications. He has edited two books, published sixteen book chapters, 700 journal papers, and 1100 conference papers. He holds 67 patents. He has co-founded six companies, including Terabit Technology (acquired by Ciena), Aerius Photonics (acquired by FLIR), Aurrion (acquired by Juniper), Calient Networks, Nexus Photonics and Quintessent.Bowers is a member of the National Academy of Engineering, a fellow of the IEEE, OSA, the American Physical Society, and the American Association for the Advancement to Science (AAAS). He is a recipient of the IEEE Photonics Award, OSA Tyndall Award, OSA Holonyak Prize, the IEEE LEOS William Streifer Award and the South Coast Business and Technology Pioneer and Entrepreneur of the Year Awards. He is a highly cited researcher.