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EXPERIMENTAL DEMONSTRATION OF WAVELENGTH TUNING IN HIGH-GAIN HARMONIC GENERATION FREE ELECTRON LASER.

Conference ·
OSTI ID:15009558
Tunability is one of the key aspects of any laser system. In High-Gain Harmonic Generation Free Electron Laser (HGHG FEL) the seed laser determines the output wavelength. Conventional scheme of tunable HGHG FEL requires tunable seed laser. The alternative scheme [1] is based on compression of the electron bunch with energy-time correlation (chirped bunch) in the FEL dispersive section. The chirped energy modulation, induced by the seed laser with constant wavelength, compressed as the whole bunch undergoes compression. In this paper we discuss experimental verification of the proposed approach at the DUV FEL [2,3] and compare experimental results with analytical estimates.
Research Organization:
BROOKHAVEN NATIONAL LABORATORY (US)
Sponsoring Organization:
DOE/OFFICE OF SCIENCE (US)
DOE Contract Number:
AC02-98CH10886
OSTI ID:
15009558
Report Number(s):
BNL--73174-2004-CP; KA4030000
Country of Publication:
United States
Language:
English

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