APS » Journals » Phys. Rev. ST Accel. Beams » Volume 5 » Issue 3

Phys. Rev. ST Accel. Beams 5, 030701 (2002)

Impact of electron beam quality on nonlinear harmonic generation in high-gain free-electron lasers

Sandra G. Biedron, Zhirong Huang, Kwang-Je Kim, Stephen V. Milton, Giuseppe Dattoli, Alberto Renieri, William M. Fawley, Henry P. Freund, Heinz-Dieter Nuhn, and Pier Luigi Ottaviani
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  1. Recently, there has been impressive progress made in the area of high-gain SASE FEL devices operating at wavelengths ranging from the near-infrared to the far ultraviolet. At the Deutsches Elektronen Synchrotron (DESY) in Hamburg, Germany, exponential gain on the Tesla Test Facility FEL has been demonstrated down to wavelengths of 80 nm [J. Andruszkow et al., Phys. Rev. Lett. 85, 3825 (2000)] [CAS][SPIRES]; They have also seen saturation [V. Ayvazyan et al., DESY Report No. 01-226; Phys. Rev. Lett. (to be published)]; The Low-Energy Undulator Test Line at the Advanced Photon Source at Argonne National Laboratory has demonstrated both SASE exponential gain and saturation at 530 nm and 385 nm [S. V. Milton et al., originally published in Science Express as 10.1126/science.1059955, May 17, 2001; Science 292, 2037–2041 (2001)]; The VISA SASE FEL collaboration achieved SASE saturation at 840 nm employing the Accelerator Test Facility at Brookhaven National Laboratory [A. Tremaine (private communication)].
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  19. S. Biedron et al., “Measurements of Nonlinear Harmonic Generation at the Advanced Photon Source's SASE FEL,” Nucl. Instrum. Methods Phys. Res., Sect. A (to be published).
  20. A. Tremaine et al., “Experimental Characterization of SASE FEL Harmonic Radiation at Saturation,” Nucl. Instrum. Methods Phys. Res., Sect. A (to be published).