8 papers
Theoretical and experimental studies of energy modulation to demodulation in seeded free-electron lasers
Hanxiang Yang, Nanshun Huang, Zipeng Liu +9
Laser manipulation plays a critical role in precisely tailoring relativistic electron beams through energy modulation, enabling the generation of coherent, intense, and ultrashort…
Advanced Externally Seeded FEL Schemes for High-Repetition-Rate Operation at SHINE
Hanxiang Yang, Nanshun Huang, Zheng Qi +3
Externally seeded free-electron lasers (FELs) are promising approaches for generating fully coherent soft-X-ray radiation. Their extension to shorter wavelengths and MHz-level repe…
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…
High-power beyond extreme ultraviolet FEL radiation with flexible polarization at SHINE
Hanxiang Yang, Zhangfeng Gao, Bingyang Yan +3
Linac-based free-electron lasers (FELs) feature high brightness, narrow bandwidth, controllable polarization, and wide wavelength tunability. With the rapid development of supercon…
Multi-color XFEL pulses with variable color separation and time delay for multi-frame diffraction imaging
Xiaodan Liu, Hanxiang Yang, Bingyang Yan +8
X-ray free-electron lasers (XFELs) of high brightness have opened new opportunities for exploring ultrafast dynamical processes in matter, enabling imaging and movies of single mol…
Spectral Control of a Cavity-Based X-ray Free-Electron Laser via Active Mode Locking
Nanshun Huang, Hanxiang Yang, Haixiao Deng
Precise spectral control in the hard X-ray regime remains a long-standing challenge that limits applications in atomic-scale science and ultrafast spectroscopy. We present an activ…