ECE Seminar - Speaker: Prof. Manijeh Razeghi, Northwestern University, Evanston, IL
Topic: III-V SB-Based Semiconductor quantum eyes; Materials and devices impact, societal challenges, and quantum opportunities
Speaker: Prof. Manijeh Razeghi, Walter P. Murphy Professor of Electrical and Computer Engineering and Director, Center for Quantum Devices, Northwestern University, Evanston, IL
Zoom Link: https://umassd.zoom.us/j/94689583161
Meeting ID: 946 8958 3161
Passcode: 605826
Abstract: Nature provides us with a vast assortment of atoms in the periodic table. When these atoms oscillate, they emit light at different energies, spanning the entire electromagnetic spectrum—from gamma rays and X-rays to ultraviolet (UV), visible light, infrared (IR), and terahertz (THz) radiation. However, human vision is limited to only a small portion of this spectrum—the colors of the rainbow. To detect and generate light beyond visible wavelengths, scientists have developed artificial eyes, such as infrared cameras. Yet, there remain unexplored frontiers in the invisible spectrum that current technologies struggle to access. Advancing our ability to see and illuminate these spectral regions requires breakthroughs in quantum materials and device engineering.
Our research focuses on pushing these boundaries by developing III-V Sb-based quantum semiconductor technologies for light detection and emission across the deep UV to THz range. A significant milestone in this field was the invention of Sb-based superlattices by Nobel Laureate Leo Esaki. However, despite decades of research, no group in the world was able to fabricate focal plane arrays (FPAs) based on this material—until our group successfully demonstrated the world’s first camera based on Sb-based superlattices. Moreover, we showed that these devices surpass the performance of the well-established mercury cadmium telluride (MCT) technology, which has long dominated infrared detection and imaging applications.
This talk will highlight our recent advancements in III-V Sb-based quantum sensors and imaging devices, which enable highly precise, accurate, and sensitive measurements across multiple applications.
Biography: Manijeh Razeghi received the Doctorate d’état ES Sciences Physiques from the Université de Paris, France, in 1980. Manijeh Razeghi was the Head of the Exploratory Materials Laboratory at Thomson-CSF (France) during the 80’s where she developed and implemented modern metalorganic chemical vapor deposition (MOCVD) vapor phase epitaxy (VPE), molecular beam epitaxy (MBE), GasMBE, and MOMBE for entire compositional ranges of III-V compound semiconductors from deep UV to THz, and realized the first InP Quantum wells and Superlattices and demonstrated the marvels of quantum mechanics in the low dimensional world. She joined Northwestern University, Evanston, IL, as a Walter P. Murphy Professor and Director of the Center for Quantum Devices in Fall 1991, where she created the undergraduate and graduate program in solid-state engineering. She has authored or co-authored more than 1000 papers, more than 35 book chapters, and 20 books. She holds many U.S. patents and has given more than 1000 invited and plenary talks. Her current research interest is in nanoscale optoelectronic quantum devices. From deep UV to Thz. Dr. Razeghi is a Fellow of MRS, IOP, IEEE, APS, SPIE, OSA, Fellow and Life Member of Society of Women Engineers (SWE), and Fellow of the International Engineering Consortium (IEC). She received the IBM Europe Science and Technology Prize in 1987, the Achievement Award from the SWE in 1995, the R.F. Bun shah Award in 2004, IBM Faculty Award 2013, the Jan Czochralski Gold Medal in 2016, the 2018 Benjamin Franklin Medal in Electrical Engineering, LSA 10th Anniversary Outstanding Contribution Award, and many best paper awards. She is an elected life-Fellow of SWE, IEEE, and MRS. She is honored as a member of Academy of Europe 2021.
The Seminar is open to the public free of charge.
*For further information, please contact Dr. Yifei Li via email at yifei.li@umassd.edu.
Science & Engineering Building (SENG), Room 222 / Zoom Link: https://umassd.zoom.us/j/94689583161 Meeting ID: 946 8958 3161 Passcode: 605826
: 285 Old Westport Road, North Dartmouth, MA - Science & Engineering Building (SENG)
Yifei Li
8841
yifei.li@umassd.edu
https://umassd.zoom.us/j/94689583161