Takashi Yatsui received his B.E. degree from Keio University, Tokyo, Japan in 1995 and M.E. and D.E. degrees from Tokyo Institute of Technology, Tokyo, Japan in 1997 and 2000, respectively. From 1999 to 2000, he was a research fellow of the Japan Society for the Promotion of Science. From 2000 to 2008, he was a researcher at the Japan Science and Technology Agency, Tokyo. >From 2008 to 2020, he was Associate Professor in the University of Tokyo. In 2020, he joined Toyohashi University of Technology as Professor. His current research interests include nanophotonic chemical reactions using optical near-field and its application to nanophotonics. Dr. Yatsui is recipient of the following awards: 1st prize in a best paper contest from the IEEE Student Branch at Tokyo Institute of Technology (1998), Excellent Research Presentation Award from the Japan Society of Applied Physics (2000), Tejima Doctoral Dissertation Award from the Tejima Foundation (2001), the Gottfried Wagener Prize (2010), Osaka University Kondo Prize (2012), Erlangen Innovation Award Optical Technologies (2012), the Ichimura Prize in Science for Distinguished Achievement (2016), Optical Engineering Award (Takawano Award) from JSAP (2019), DOCOMO Mobile Science Award (2021).