[17p-C4-2~9] 18.7 Laser Photonics－XFEL and ultrafast optics－

▲ [17p-C4-5] Ultra-fast Processes in Optically Excited Ge₂Sb₂Te₅ by Transient X-ray Diffraction Using a Free-Electron Laser

^〇Kirill Mitrofanov^1,4，Paul Fons^1,4，Kotaro Makino¹，Ryo Terashima²，Alexander Kolobov¹，Junji Tominaga¹，Alessandro Giussani³，Raffella Calarco³，Henning Riechert³，Tetsuo Katayama⁵ (Nanoelectronics Research Institute, AIST¹，Institute of Applied Physics, University of Tsukuba²，Paul-Drude-Institut fur Festkorperelektronik³，RIKEN SPring-8, XFEL Research and Development Division⁴，XFEL Project Head Office, Japan Synchrotron Radiation Research Institute⁵)

キーワード：Time-resolved x-ray diffraction,Free-electron laser,Ultrafast structural dynamics