Translator Disclaimer
24 April 2019 Simple generation of two-color FEL pulses using a sextupole magnet
Author Affiliations +
We present a new and simple method to generate two-color free-electron laser (FEL) pulses. In our scheme an electron bunch is quadratically tilted in the transverse direction and exhibits an energy chirp. The head and tail of the bunch are aligned to the undulator beamline and will lase, while the middle part of the bunch undergoes orbit oscillations and thus is unable to amplify the FEL radiation. Since the beam is energy chirped, the central wavelengths of the SASE amplification at the two aligned parts of the bunch are different. The beam tilt is introduced by a variation of sextupole strength in a bunch compressor section. We present simulation results of this new method for the hard X-ray FEL beamline Aramis at SwissFEL. This includes the general performance and tunability of the scheme, the requirements on the energy chirp and tilt generation, and adverse effects associated with the beam tilt.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Philipp Dijkstal, Sven Reiche, and Eduard Prat "Simple generation of two-color FEL pulses using a sextupole magnet", Proc. SPIE 11038, X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation V, 110380X (24 April 2019);


Overview of SASE free-electron laser simulation codes
Proceedings of SPIE (July 19 1999)
Phase retrieval for in line hard x ray phase contrast...
Proceedings of SPIE (February 02 2006)
Fabrication of a 400 mm long mirror for focusing x...
Proceedings of SPIE (September 03 2008)
Structure from random snapshots
Proceedings of SPIE (September 01 2010)

Back to Top