Work

Phase-merging enhanced harmonic generation free-electron laser

Year: 2014

Type: article

Abstract: Together with one of its variants, the recently proposed phase-merging enhanced harmonic generation (PEHG) free-electron laser (FEL) is systematically studied in this paper. Different from a standard high-gain harmonic generation scheme, a transverse gradient undulator is employed to introduce a phase-merging effect into the transversely dispersed electron beam in PEHG. The analytical theory of the phase-merging effect and the physical mechanism behind the phenomenon are presented. Using a representative set of beam parameters, intensive start-to-end simulations for soft x-ray FEL generation are given to illustrate the performance of PEHG. Moreover, some practical issues that may affect the performance of PEHG are also discussed.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/16/4/043021

Authors: Chao Feng, Haixiao Deng, Dong Wang, Zhentang Zhao

Institutions: Chinese Academy of Sciences, Shanghai Institute of Applied Physics

Language: English

Topic: Particle Accelerators and Free-Electron Lasers

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funders: National Natural Science Foundation of China, Major State Basic Research Development Program of China