论坛信息

报告人：Keiichi Nakagawa 教授

报告邀请人：贺号教授

报告时间：2024年10月18日 15：00-16：30

报告地点：徐汇教三楼一楼会议室

摘要

      In the first half of the lecture, I will introduce biomedical applications based on the combination of light and sound. We have developed a technique to manipulate light propagation in a biological sample, especially the highly scattering medium. We generate non-linear acoustic waves outside the sample and form a pressure gradient inside the sample to confine the light against the scattering. In the second half of the lecture, I will discuss the current state and prospects of high-speed imaging technology. The interaction between acoustic waves and biological tissues occurs in extremely short timeframes, but conventional technology has been unable to capture such high-speed phenomena. To observe the phenomena directly, we have developed an all-optical ultrafast imaging technique called STAMP (sequentially timed all-optical mapping photography). I will present the principle of STAMP, optical setups, and imaging results from femtosecond to nanosecond timescales.

报告人介绍

Keiichi Nakagawa received a Ph.D. degree in engineering from The University of Tokyo in 2014. He is currently an Associate Professor in the Department of Bioengineering and the Department of Precision Engineering at the University of Tokyo, Japan. He also holds the position of a FOREST Researcher at the Japan Science and Technology Agency as well as a Visiting Scientist at RIKEN. He has been awarded the Young Scientists' Prize by the Minister of Education, Culture, Sports, Science and Technology, Japan.