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Phys. Rev. ST Accel. Beams 5, 030701 (2002) [8 pages]

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

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Sandra G. Biedron *, Zhirong Huang, Kwang-Je Kim, and Stephen V. Milton
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439

Giuseppe Dattoli and Alberto Renieri
ENEA, Divisione Fisica Applicata, Centro Ricerche Frascati, C.P. 65, 00044 Frascati, Rome, Italy

William M. Fawley
Lawrence Berkeley National Laboratory, Berkeley, California 94720

Henry P. Freund
Science Applications International Corporation, McLean, Virginia 22102

Heinz-Dieter Nuhn
Stanford Linear Accelerator Center, Stanford University, Menlo Park, California 94309-0210

Pier Luigi Ottaviani
ENEA, Divisione Fisica Applicata, Centro Ricerche E. Clementel, Via Don Fiammelli 2, Bologna, Italy

Received 20 November 2001; published 8 March 2002

Nonlinear harmonic generation can be a very useful and important phenomenon for single-pass free-electron lasers (FELs) operating in the high-gain regime. Strong bunching at the fundamental wavelength and its associated higher harmonic content allow significant radiation at shorter wavelengths to be emitted without serious effects upon the output power at the fundamental. Here, we analyze the relative sensitivities to beam quality variations of the output fundamental and harmonic powers for a visible-wavelength FEL operating in the high-gain regime.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevSTAB.5.030701
DOI: 10.1103/PhysRevSTAB.5.030701
PACS: 41.60.Cr, 42.65.Ky, 52.59.-f, 42.72.Bj

* Corresponding author. Also at MAX-Laboratory, University of Lund, Lund, Sweden, SE-22100.

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