Optical imaging in scattering biological tissue: wavefront shaping and photoacoustics


Professor Cheng Ma

Department Of Electronic Engineering, Tsinghua University


13:00-14:00, Thursday, July 16th, 2020


Tencent Meeting (Online)

Abstract of seminar:

Optical imaging offers rich structural, molecular and functional contrasts, and has had a profound impact on biological research. Yet, the clinical translation of optical imaging technologies encounters a big challenge: due to light scattering, conventional optical imaging modalities are limited to superficial regions under the skin surface. To break through this physical barrier, a few solutions were developed in recent years. In this talk, I will share my research experiences in this exciting field and, in particular, focus on two technologies: photoacoustic computed tomography and optical wavefront shaping, both can form images of optical contrast at centimeter depths, with relatively high resolutions. I will introduce their basic principles, present some of our latest results, and discuss future challenges and opportunities.

Biography of speaker:

Cheng Ma received his B.S. degree in Electronic Engineering from Tsinghua University, Beijing, China in 2004.  He obtained his Ph. D. degree in Electrical Engineering from Virginia Tech, Blacksburg, Virginia in 2012. From 2012 to 2016, he was a postdoctoral research associate in the Department of Biomedical Engineering at Washington University in St Louis, St. Louis, Missouri. He is now an associate professor in the Department of Electronic Engineering at Tsinghua University. His current research mainly focuses on photoacoustic imaging technologies and their clinical translations. He has published over 30 journal papers, including Nature Biomedical Engineering, Nature Photonics, Nature Communications, and Science Advances.