Polarization control proposal for Shanghai deep ultraviolet free electron laser

Abstract

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-to-end simulation suggests that, the two crossed planar undulators which generate the horizontal and vertical linear polarized FEL respectively, should be placed as close as possible for avoiding the polarization performance degradation of the final combined FEL radiation. With the existence of the phase-shifter between the two crossed radiators, Fourier-Transform-Limited output radiation with 100 nJ order pulse energy, 5 ps full pulse length and circular polarization degree above 90% could be achieved.

9 pages, 5 figures, 1 table

References in corpus (2)

• Statistical Analysis of Crossed Undulator for Polarization Control in a SASE FEL
• Characterizing Temporal Structure of the Relativistic Electron Bunch

Cited by in corpus (6)

• Using Off-Resonance Laser Modulation for Beam Energy Spread Cooling in Generation of Short-Wavelength Radiation
• Fast Polarization Switching Demonstration Using Crossed-Planar Undulator in a Seeded Free Electron Laser
• Harmonic lasing of x-ray free electron laser: on the way to smaller and cheaper
• Simulation studies on laser pulse stability for Dalian Coherent Light Source
• FEL Polarization Control Studies on Dalian Coherent Light Source
• Single-shot measurement of free-electron laser polarization at SDUV-FEL