4 papers
Fully coherent short wavelength free-electron laser driven by a single sub-microjoule seed
Lanpeng Ni, Zheng Qi, Xingtao Wang +33
High-repetition-rate, fully coherent extreme-ultraviolet (EUV) and X-ray free-electron lasers (FELs) are essential for advanced time-resolved ultrafast spectroscopies. While extern…
First Lasing and Stable Operation of a Direct-Amplification Enabled Harmonic Generation Free-Electron laser
Zheng Qi, Junhao Liu, Lanpeng Ni +27
Seeded free-electron lasers (FELs) capable of operating at repetition rates up to the MHz level are in high demand for advanced time-resolved spectroscopies, which require both ful…
Isolated attosecond free-electron laser based on a sub-cycle driver from hollow capillary fibers
Yaozong Xiao, Tiandao Chen, Bo Liu +4
The attosecond light source provides an advanced tool for investigating electron motion using time-resolved-spectroscopy techniques. Isolated attosecond pulses, especially, will si…
Self-referenced Spectral Interferometry for Single-shot Characterization of Ultrashort Free-electron Laser Pulses
Yaozong Xiao, Hao Sun, Bo Liu +2
Attosecond x-ray pulse with known spectro-temporal information is an essential tool for the investigation of ultrafast electron dynamics in quantum systems. Ultrafast free-electron…