Concept of a novel tabletop THz FEL amplifier

We propose a novel tabletop THz FEL amplifier consisting of a photocathode RF gun, an undulator, and an is-TPG THz seeding system. In the compact FEL amplifier, tunable and narrowband THz seed light generated by the is-TPG device is amplified through FEL interaction with high brightness electron bea...

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Bibliographic Details
Main Authors: Kii, T., Higashimura, K., Bakr, M.A., Kinjo, R., Yoshida, K., Ueda, S., Sonobe, T., Masuda, K., Ohgaki, H.
Format: Conference Proceeding
Language:English
Subjects:
Brightness
Cathodes
Electron beams
Free electron lasers
Laser excitation
Optical amplifiers
Pump lasers
Radio frequency
Radiofrequency amplifiers
Undulators
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Summary:We propose a novel tabletop THz FEL amplifier consisting of a photocathode RF gun, an undulator, and an is-TPG THz seeding system. In the compact FEL amplifier, tunable and narrowband THz seed light generated by the is-TPG device is amplified through FEL interaction with high brightness electron beam in the undulator. Design study and numerical estimation of the performance of the tabletop THz FEL amplifier have been studied. The sub-watt level THz seed light will be amplified order of 4 in peak power with a 2.5 m long undulator. Total size of the novel THz FEL amplifier is expected to be 2 m times 4 m.
ISSN:2162-2027
DOI:10.1109/ICIMW.2009.5325607