题目：Development of LWFA Towards a Table-top XUV-FEL
报告人：Associate Prof. Zhan Jin
Osaka University
摘要：
In order to develop a stable laser wakefield acceleration (LWFA)-based accelerator and demonstrate FEL generation, the unique LWFA platform was constructed in the RIKEN SPring-8 center. Systematic experiments have been conducted, financially supported by ImPACT (2013-2018) and JST MIRAI (2018-) programs.
Although undulator radiation in an XUV spectral range driven by LWFA electron beams was successfully demonstrated on the platform in 2019, the sufficient reproducibility was not obtained due to the poor electron pointing stability and large energy fluctuations. In order to solve the above problems, the accelerated electron beam quality has been improved by developing the shock injection scheme enabling a precise injection control and a stable plasma condition. This development has dramatically improved the reproducibility and stability of the LWFA electron beam. The preliminary proof-of-concept experiment has recently demonstrated the clear amplification of the undulator radiation and the possibility of LWFA based FEL in XUV range.
The talk will be presenting the outline of the LWFA platform, the setup of a proof-of-concept experiment focusing on key improvements and obtained results.
简介：
Zhan JIN obtained his PhD in Institute of Physics, Chinese Academy of Sciences in 2006. He joined the Institute of Laser Engineering, Osaka University as a postdoctoral researcher, and was promoted to assistant professor (non-tenured) in 2008 and associated professor (non-tenured) in 2016. In 2018, he joined SPring-8 center, RIKEN, as a research scientist. And he returned to SANKEN, Osaka University as an associate professor (tenured) in 2019. His research interests focus on intense, ultrashort laser-plasma interaction, in particular, terahertz radiation generation and laser wakefield electron acceleration.
时间：2024年8月15日（星期四）上午10:00
地点：中科院物理研究所M249会议室
腾讯会议：688-700-201
邀请人：李玉同 研究员（Tel：82648014）
主办单位：中国科学院光物理重点实验室
