*Kaoru Sugimoto1,2, Naoki Higashi1,2, Natsumi Iwata2, Atsushi Sunahara3, Takayoshi Sano2, Yasuhiko Sentoku2
(1. Department of Physics, Graduate School, Osaka University, 2. Institute of Laser Engineering, 3. Center for Materials Under eXtrem Environment, School of Nuclear Engineering, Purdue University)