Minjoo Larry Lee
Professor, University of Illinois Urbana-Champaign
Date: April 10, 2025
Time: 11:00 AM - 12:00 PM ET
Location: Building 12, Room 0168 (MIT.nano Basement Teaching Space)
ABSTRACT
In this talk, Prof. Lee will describe recent work in his group on molecular beam epitaxy (MBE) growth for visible photonics applications. First, he will describe efforts to integrate red AlInGaP-based laser diodes on a SiN/Si photonics platform for trapped ion qubit technology. Through a combination of selective and non-selective III-V growth, he show that InP quantum dots grown in “pockets” are a promising active region material for butt-coupled visible gain. Next, Prof. Lee will discuss his groups efforts to demonstrate solid-state image intensifiers for night vision applications. He uses InGaAs avalanche heterojunction phototransistors with an intrinsic gain feedback mechanism to directly drive visible AlGaInP LEDs without op amps or any external circuitry. Prof. Lee will show sensitivity to 1.55 µm light at incident intensity down to nW/cm2, close to the level of nightglow.
BIOGRAPHY
Minjoo Larry Lee received his bachelor’s degree from Brown University and his Ph.D. from MIT, both in materials science. He started his faculty career at Yale University as an assistant professor in EE, and he is now with the ECE department at UIUC, where he is a professor, Intel Alumni Scholar, and Director of the Nick Holonyak, Jr. Micro and Nanotechnology Laboratory. His research focuses on epitaxial materials and devices, and he is the author of over 190 papers and conference proceedings. He is an Optica fellow, and his research recognitions include the IBM faculty award; North American conference on MBE Young Investigator Award; DARPA Young Faculty Award; NSF CAREER award; and the IEEE Electron Device Society George E. Smith award. His advisees have won 14 best presentation prizes at international conferences, and he has been honored for his teaching in circuits, electromagnetics, and IC fabrication.