The Power of Working in Concert

Ali Hajimiri gives his talk, “The Power of Working in Concert” on October 29, 2025.
EECS Colloquium
Wednesday, October 29, 2025
306 Soda Hall (HP Auditorium)
4:00 – 5:00 pm
Ali Hajimiri
Bren Professor of EE and Medical Engineering, Director of Caltech Holistic Integrated Circuit Laboratory, and co-Director of the Space-based Solar Power Project at Caltech
Bio
Ali Hajimiri is Bren Professor of Electrical Engineering and Medical Engineering, Director of Caltech Holistic Integrated Circuit Laboratory, and co-Director of the Space-based Solar Power Project at California Institute of Technology (Caltech). His research interests are high-speed and high-frequency electronics and photonics integrated circuits for applications in sensors, photonics, communication, wireless energy transfer, and biomedical devices. He co-founded Axiom Microdevices Inc., whose fully-integrated CMOS PA has shipped around 400,000,000 units, and was acquired by Skyworks Inc.
He is a Fellow of National Academy of Inventors (NAI). He is also a Fellow of IEEE and has served as a Distinguished Lecturer of the IEEE Solid-State and Microwave Societies. He won the Feynman Prize for Excellence in Teaching, Caltech’s most prestigious teaching honor, as well as Caltech’s Graduate Students Council Teaching and Mentoring award. He is also three-times winner of the Associated Students of Caltech (ASCIT) Undergraduate Excellence in Teaching Award. He was a co-recipient of the IEEE Journal of Solid-State Circuits Best Paper Award, the International Solid-State Circuits Conference (ISSCC) Jack Kilby Outstanding Paper Award, a co-recipient of RFIC best paper award, a two-time co-recipient of CICC best paper award, and a three-time winner of the IBM faculty partnership award as well as National Science Foundation CAREER award and Okawa Foundation award.
Abstract
Synchronized operation of a large number of similar entities can generate behavior that cannot be expected from single one. This principle combined with the physical concept of coherence in waves enables creation of programmable 3-dimensional focal points that can be used to enable many applications such as wireless energy transfer at distance on earth and even from space, flat lensless projectors and cameras, and various other present and future applications. It can manifest itself in the form of phased arrays and focusing arrays with an ensemble of synchronized wave generating or receiving elements. While the individual element behavior may be rather unremarkable, such systems can lead to rich and useful behaviors. We will go through a journey based on this principle and a progression of its potential applications.