6 papers
Attosecond Waveform Synthesis through Echo-enabled Harmonic Generation Free-electron Lasers
Lanpeng Ni, Junhao Liu, Zheng Qi +1
Attosecond pulse trains (APTs) are indispensable for probing electron dynamics at their intrinsic timescales. High harmonic generation (HHG) has long been a successful and widely u…
Generating 10 GW-class isolated zeptosecond x-ray bursts through bootstrapping two plasma-based accelerator stages
Qianyi Ma, Yuhui Xia, Zhenan Wang +8
A method is proposed to generate coherent, intense zeptosecond x-ray pulses by using the electron beam produced by a laser wakefield accelerator (LWFA) stage as the driver for a be…
Multi-Dimensional Phase Space Manipulation for Attosecond Electron Bunch Compression
Yuxin Cheng, Chao Feng, Qiang Gu
Attosecond electron beams are essential for investigating ultrafast structural and electronic dynamics in matter with atomic-scale resolution. We propose a novel method that enable…
Enabling Continuous THz Band Coverage via Precise Electron Beam Tailoring in Free-electron Lasers
Yin Kang, Tong Li, Zhen Wang +28
High-power, continuously tunable narrowband terahertz (THz) sources are essential for advancing nonlinear optics, THz-driven material dynamics, and ultrafast spectroscopy. Conventi…
Zeptosecond Gamma-Ray Pulses Generation via FEL-Driven Microbunching and Laser-Compton Scattering
Jinke Xiong, Hanghua Xu, Liangliang Ji +1
We introduce a novel and reliable approach to generate zeptosecond(10^{-21} s,zs), high-energy photon pulse bursts by synergistically exploiting the inherent characteristics of Fre…
The Performance of Seeded Free-Electron Lasers Through Dispersion Strength Tuning
Li Zeng, Chao Feng, Xiaofan Wang +2
Over the last decade, external seeded free electron lasers (FELs) have achieved significant advancements across various disciplines, progressively establishing themselves as indisp…