Sub-millijoule-level Fe:ZnSe chirped pulse amplifier seeded by KTA-based OPA system Daiki Okazaki, Tsuneto Kanai, Linpeng Yu, Yuri Kirita, Ryo Yasuhara and Shigeki Tokita EPJ Web Conf., 307 (2024) 04069 Published online: 18 October 2024 DOI: 10.1051/epjconf/202430704069