Prof. Gregory B. Olson
Professor of the Practice, MIT Materials Science and Engineering
Email
Roles and Accreditations
Professor of the Practice
Search the ISN Site
Update as of
Prof. John D. Joannopoulos (1947–2025)
In the early morning hours of August 17, 2025, Prof. John Joannopoulos, ISN Director since 2006 and a member of the MIT faculty since 1974, passed away following an extended battle with cancer. He will be sorely missed as a leader, scientist, educator, mentor, and friend. His legacy will endure.