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Experiments: Completed / Terminated

High-Gain Harmonic-Generation Free-Electron Laser Experiment

 

Design document (PDF)

Ph.D. Thesis of Dr. Adnan Doyuran

Publications in refereed journals:

 

L.-H. Yu, M. Babzien, I. Ben-Zvi, L.F. DiMauro, A. Doyuran, W. Graves, E. Johnson,

S. Krinsky, R. Malone, I. Pogorelsky, J. Skaritka, G. Rakowsky, L. Solomon, X.J. Wang, M. Woodle, V. Yakimenko, S.G. Biedron, J.N. Galayda, E. Gluskin, J. Jagger, V. Sajaev, I. Vasserman,

High-Gain Harmonic-Generation Free-Electron Laser,

Science, 289 (2000) 932

 

Results from the experiment:

SASE results at 3.8 microns

SASE results at 5.3 microns

HGHG results at 5.3 microns

Papers presented at PAC'99:

Status of the experiment as of March '99

Summary of the expected HGHG parameters

Diagnostics and trajectory control

HIGH GAIN HARMONIC GENERATION:

The FEL operates as an amplifier of a coherent signal, generated by a seed laser, thus:

  • -No need for resonator mirrors

  • -The wiggler is shorter as compared to startup from spontaneous noise (SASE).

  • -The bandwidth is narrower as compared to startup from spontaneous noise (SASE).

  • -High wavelength stability is provided by the seed laser (the wavelength does not depend on the electron beam energy)

  • -Adjustable pulse length through the seed. No need to change the electron pulse length.

  • -Precise chirping is possible through the seed laser. Possibility of femptosecond pulses through optical compression.

  • -Flexible pulse format: Single pulses, bursts, veto etc.

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Last Modified: December 3, 2007
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