ECE Colloquium: Changhyuk Lee(KIST) “CMOS lens-less imaging and Optoelectronic Neural interface”
Speaker : Changhyuk Lee
Despite decades of research, the dream of prosthetic interfaces to human brain remains unrealized. Incremental advances in neural interfaces have proven much insufficient to solve the challenges inherent to the understanding and the manipulation of the neural circuits. The core problem is that existing approaches are often too bulky and too specific to match the complexity of the brain. I propose to tackle this challenge with a revolutionary neural duplexing system based on a large scale active optical neural interface device. In this talk, I’ll discuss multiple research projects I investigated during the course of this endeavor which was initiated with a far-field lens-less image sensor based on angular sensitive pixel (ASP) than leading to large scale in-vivo or in-vitro fluorescence imaging bio-sensor using a single photon avalanche diode (SPAD), and other optical sensors all based on conventional silicon-based semiconductor technology as well as hetero-integration with emerging technologies.
Changhyuk Lee is currently a Senior Research Scientist at Brain Science Institute of Korea Institute of Science and Technology. He received the B.S. degree in electrical and computer engineering from Korea University, Seoul, Korea, in 2005, and the M.S. and Ph.D. degrees from Cornell University, Ithaca, NY, USA. Before starting his position at Cornell, he worked at Samsung from 2004 to 2006, and he also worked for Com2us, Seoul, Korea, from 2007 to 2008. From 2015 to 2017, Dr. Lee was a Postdoctoral Researcher at Bio-electronic Systems Lab at Columbia University. His current research interests include optoelectronic neural interfaces, implantable bionics, computational neuroscience and neurobiology.