94 citations · 491 across the 33 of their papers we have counts for
33 papers
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…
A synchrotron-based kilowatt-level radiation source for EUV lithograph
Bocheng Jiang, Chao Feng, Changliang Li +8
A compact damping ring with limited circumference of about 160 m is proposed for producing kilowatt-level coherent EUV radiation. The electron bunch in the ring is modulated by a 2…
High-repetition-rate seeded free-electron laser with direct-amplification of an external coherent laser
Xiaofan Wang, Chao Feng, Bart Faatz +2
Various scientific and industrial researches such as spectroscopy and advanced nano-technologies have been demanding high flux and fully coherent EUV and X-ray radiation. These dem…
First observation of laser-beam interaction in a dipole magnet
Jiawei Yan, Nanshun Huang, Haixiao Deng +3
As a new-generation light source, free-electron lasers (FELs) provide high-brightness X-ray pulses at the angstrom-femtosecond space and time scales. The fundamental physics behind…
Self-Amplification of Coherent Energy Modulation in Seeded Free-Electron Lasers
Jiawei Yan, Zhangfeng Gao, Zheng Qi +23
The spectroscopic techniques for time-resolved fine analysis of matter require coherent X-ray radiation with femtosecond duration and high average brightness. Seeded free-electron…
Extreme bright coherent synchrotron radiation produced in a low emittance electron storage ring by the angular dispersion induced microbunching scheme
Changliang Li, Chao Feng, Bocheng Jiang
Generation of extreme bright coherent synchrotron radiation in a short wavelength range is of remarkable interest in the synchrotron light source community. In this paper, a novel…
Obliquely Incident Laser and Electron Beam Interaction in an Undulator
Xiaofan Wang, Chao Feng, Cheng-Ying Tsai +2
The angular drift of a laser beam is of particular concern in applications such as seeded free-electron lasers. A systematical study of the obliquely incident laser and electron be…
High brightness fully coherent X-ray amplifier seeded by a free-electron laser oscillator
Kai Li, Jiawei Yan, Chao Feng +2
X-ray free-electron laser oscillator (XFELO) is expected to be a cutting edge tool for fully coherent X-ray laser generation, and undulator taper technique is well-known for consid…
Bandwidth broadening of X-ray free electron laser with the natural gradient of planar undulator
Minghao Song, Jiawei Yan, Kai Li +2
Besides the target to pursue the narrow bandwidth X-ray pulses, the large bandwidth free-electron laser pulses are also strongly demanded to satisfy a wide range of scientific user…
Extending the photon energy coverage of an x-ray self-seeding FEL via the reverse taper enhanced harmonic generation technique
Kaiqing Zhang, Zheng Qi, Chao Feng +3
In this paper, a simple method is proposed to extend the photon energy range of a soft x-ray self-seeding free-electron laser (FEL). A normal monochromator is first applied to puri…
Bandwidth broadening of X-ray free electron laser pulses with the natural gradient of planar undulator
Minghao Song, Kai Li, Jiawei Yan +3
Besides the target to pursue the narrow bandwidth X-ray pulses, the large bandwidth free-electron laser pulses are also strongly demanded to satisfy a wide range of scientific user…
Wakefields studies for the SXFEL user facility
Minghao Song, Chao Feng, Dazhang Huang +3
Besides the original seeded undulator line, in the Soft X-ray free-electron laser (SXFEL) user facility at Shanghai, a second undulator line based on self-amplified spontaneous emi…
Chromatic Effect for THz Generation in a Novel Wave-front Tilt Scheme
Bin Li, Wenyan Zhang, Xiaoqing Liu +13
Deriving single or few cycle terahertz pulse (THz) by intense femtosecond laser through cascaded optical rectification in electro-optic crystals is a crucial technique in cutting-e…
Generating Isolated Terawatt-Attosecond X-ray Pulses via a Chirped Laser Enhanced High-Gain Free-electron Laser
Zhen Wang, Chao Feng, Zhentang Zhao
A feasible method is proposed to generate isolated attosecond terawatt x-ray radiation pulses in high-gain free-electron lasers. In the proposed scheme, a frequency chirped laser p…
Generating coherent soft x-ray pulses in the water window with a high-brightness seeded free-electron laser
Kaishang Zhou, Chao Feng, Haixiao Deng +1
We propose a new scheme to generate high-brightness and temporal coherent soft x-ray radiation in a seeded free-electron laser. The proposed scheme is based the coherent harmonic g…
Fully coherent hard X-ray generation by two-stage of Phase-merging Enhanced Harmonic Generation
Guanglei Wang, Weiqing Zhang, Xueming Yang +2
Cascading stages of seeded free electron laser (FEL) is a promising way to produce fully coherent X-ray radiations. We study a new approach to produce coherent hard X-rays by casca…
Wakefield issue and its impact on X-ray photon pulse in the SXFEL test facility
Minghao Song, Kai Li, Chao Feng +3
Besides the designed beam acceleration, the energy of electrons changed by the longitudinal wakefields in a real free-electron laser (FEL) facility, which may degrade FEL performan…
Demonstration of nonlinear-energy-spread compensation in relativistic electron bunches with corrugated structures
Feichao Fu, Rui Wang, Pengfei Zhu +18
High quality electron beams with flat distributions in both energy and current are critical for many accelerator-based scientific facilities such as free-electron lasers and MeV ul…
Beam energy distribution influences on density modulation efficiency in seeded free-electron lasers
Guanglei Wang, Chao Feng, Haixiao Deng +6
The beam energy spread at the entrance of undulator system is of paramount importance for efficient density modulation in high-gain seeded free-electron lasers (FELs). In this pape…
Experimental demonstration of longitudinal beam phase space linearizer in a free-electron laser facility by corrugated structures
Haixiao Deng, Meng Zhang, Chao Feng +19
Removal of residual linear energy chirp and intrinsic nonlinear energy curvature in the relativistic electron beam from radiofrequency linear accelerator is of paramount importance…
Three-dimensional manipulation of electron beam phase space for seeding soft x-ray free-electron lasers
Chao Feng, Tong Zhang, Haixiao Deng +1
In this letter, a simple technique is proposed to induce strong density modulation into the electron beam with small energy modulation. By using the combination of a transversely d…
Single-shot measurement of free-electron laser polarization at SDUV-FEL
Lie Feng, Haixiao Deng, Tong Zhang +10
In this paper, a division-of-amplitude photopolarimeter (DOAP) for measuring the polarization state of free-electron laser (FEL) pulse is described. The incident FEL beam is divide…
Phase-merging Enhanced Harmonic Generation Free-electron Laser
Chao Feng, Haixiao Deng, Dong Wang +1
Together with one of its variants, the recently proposed phase-merging enhanced harmonic generation (PEHG) free-electron lasers (FELs) have been systematically studied in this pape…
Fast Polarization Switching Demonstration Using Crossed-Planar Undulator in a Seeded Free Electron Laser
Haixiao Deng, Tong Zhang, Lie Feng +13
Fast polarization switching of light sources is required over a wide spectral range to investigate the symmetry of matter. In this Letter, we report the first experimental demonstr…