Sensing through terahertz-wave semiconductor chips

Ruonan Han
Associate Professor
Department of Electrical Engineering & Computer Science


With the adoption of millimeter-wave spectrum in 5G wireless (24GHz~71GHz) and automotive radars (77GHz), future utilizations of even higher frequency waves within the terahertz band (0.1THz~10THz, 1TH=1000GHz) are drawing increasing attentions. Operations at THz frequencies aggressively push the performance boundary of traditional electronic and photonic devices, leading to bulky and expensive hardware, hence limited practical applications. That dilemma is expected to change thanks to the recent advances in semiconductor chips.

In this talk, Ruonan Han will showcase how his team at MIT developed highly integrated and low cost THz microsystems using silicon integrated-circuit technologies, and used these microsystems in LiDAR-like high-resolution 3D imaging, gas sensing through molecular spectroscopy, and unobstructive sensing based on 1mm2-sized nodes.


Ruonan HanRuonan Han received his B.S. degree from Fudan University in 2007 and Ph.D. degree from Cornell University in 2014. He is now an associate professor and the director of the Center for Integrated Circuits and Systems of MIT. His research group focuses on RF-to-photonics integrated systems for spectroscopy, metrology, imaging, quantum sensing/ processing, broadband/secure communication, etc. He is the winner of the National Science Foundation CAREER Award in 2017, the Intel Outstanding Researcher Award in 2019, IEEE MTT-S Distinguished Microwave Lecturer in 2020-2022, and the IEEE Solid-State Circuit Society New Frontier Award in 2023.