55 citations · 255 across the 20 of their papers we have counts for
20 papers
Coupler RF kick and emittance optimization of the SHINE injector
Junjie Guo, Duan Gu, Zenggong Jiang +4
Coupler RF kick due to the asymmetric structure caused by the coupler, is more likely to lead to emittance growth in the SHINE injector with low beam energy. The calculation of cou…
Inhibition of Current-spike Formation Based on Longitudinal Phase Space Manipulation for High-Repetition-Rate X-ray FEL
Zihan Zhu, Duan Gu, Jiawei Yan +5
The formation of a double-horn current profile is a challenging issue in the achievement of electron bunch with high peak current, especially for high-repetition-rate X-ray free-el…
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…
Energy recovery operation for continuous-wave X-ray free-electron lasers
Guanglei Wang, Jiawei Yan, Nanshun Huang +7
A superconducting linear accelerator operating in continuous-wave mode could produce X-ray free electron lasers (XFEL) at megahertz repetition rate, with the capability that delive…
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…
Switchyard design for the Shanghai soft x-ray free electron laser facility
Duan Gu, Zhen Wang, Dazhang Huang +2
In this article, a feasible switchyard design is proposed for the Shanghai soft x-ray free electron laser facility. In the proposed scheme, a switchyard is used to transport the el…
Effect of plasmonic near field on the emittance of plasmon-enhanced photocathode
Zeng-gong Jiang, Qiang Gu, Xu-dong Li +2
The introduction of the surface plasmon polarizations makes the emittance of the photocathode complicated. In this paper, the emittance of plasmon-enhanced photocathode is analyzed…
Time-resolved electron beam diagnostics with sub-femtosecond resolution
Guanglei Wang, Meng Zhang, Wei Zhang +2
In modern high-gain free-electron lasers, ultra-fast photon pulses designed for studying chemical, atomic and biological systems are generated from a serial of behaviors of high-br…
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…
Analysis of the microbunching instability in a mid-energy electron linac
Dazhang Huang, Qiang Gu, Zhen Wang +2
Microbunching instability usually exists in the linear accelerator (linac) of a free electron laser (FEL) facility. If it is not controlled effectively, the beam quality will be da…
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…
Study of microbunching instability in the linac of a soft X-ray FEL Facility
Dazhang Huang, Qiang Gu, Meng Zhang +2
The development of the microbunching instability is studied for the linac of the proposed Shanghai Soft X-ray Free-Electron-Laser facility (SXFEL) by analytic formulae as well as n…
Simulation studies on laser pulse stability for Dalian Coherent Light Source
Haixiao Deng, Meng Zhang, Duan Gu +3
Dalian Coherent Light Source will use a 300MeV LINAC to produce fully coherent photon pulses in the wavelength range between 150-50nm by high gain harmonic generation free electron…
Status of polarization control experiment at Shanghai deep ultraviolet free electron laser
Haixiao Deng, Tong Zhang, Lie Feng +15
A polarization control experiment by utilizing a pair of crossed undulators has been proposed for the Shanghai deep ultraviolet free electron laser test facility. Numerical simulat…
Coherent photon beam based diagnostics for a seeded extreme ultraviolet free-electron laser
Chao Feng, Haixiao Deng, Manzhou Zhang +4
Independently from electron beam based procedures, photon beam based diagnostics is an alternative way for alignment and commissioning of the numerous undulator cells in a high-gai…
Polarization control proposal for Shanghai deep ultraviolet free electron laser
Tong Zhang, Haixiao Deng, Jianhui Chen +9
In this paper, a fully coherent radiation option with controllable polarization is proposed for Shanghai deep ultraviolet free electron laser (FEL) test facility. Intensive start-t…
Characterizing Temporal Structure of the Relativistic Electron Bunch
Haixiao Deng, Chao Feng, Bo Liu +3
Using proper beam energy chirp and the undulator detuning effect, we propose a modified optical replica synthesizer scheme to characterize the temporal structure of a relativistic…