Sub-5-fs compression and synchronization of relativistic electron bunches enabled by a high-gradient $\hat{I}\pm$-magnet and low-jitter photoinjector

Yining Yang, Zhiyuan Wang, Peng Lv +9

Generating high-brightness relativistic electron bunches with few-femtosecond duration, while simultaneously achieving few-fs synchronization with ultrafast lasers, remains an outs…