Toshiki Tajima (Japanese: 田島俊樹, Hepburn: Tajima Toshiki, born January 18, 1948)[1] is a Japanese theoretical plasma physicist known for pioneering the laser wakefield acceleration technique with John M. Dawson in 1979.
Tajima is currently a professor of the University of California, Irvine,[4] and is the Chief Science Officer of TAE Technologies.
From 2002, he was director of the Kansai Photon Science Institute of the Japan Atomic Energy Agency, and from 2008 to 2011 he was a professor at the Ludwig Maximilians University of Munich.
Tajima was Chairman of the International Committee for Ultrahigh Intensity Lasers (ICUIL) and Deputy Director of the International Center for Zetta-Exawatt Science and Technology (IZEST) at École Polytechnique (with director Gérard Mourou).
Tajima is also the Chief Science Officer of TAE Technologies, a company founded in 1998 that deals with aneutronic fusion power.