抄録
Recently, it is strongly required to develop ultra-short electron beam sources for ultra-fast probe analysis of matter. Among a number of concepts of ultra-short electron bunch production the laser wake-field acceleration (LWFA) provides one of the most promising approaches. In this paper, updated achievements of generation of an ultra-short electron bunch by self-injected LWFA are summarized. We describe latest results of plasma cathode by Univ. of Tokyo, also review the ones by Univ. of Michigan, LBNL (Lawrence Berkeley National Laboratory), and LOA (Laboratoire d’Optique Appliquée).
