Concept of a novel tabletop THz FEL amplifier

Author

Kii, T. ; Higashimura, K. ; Bakr, M.A. ; Kinjo, R. ; Yoshida, K. ; Ueda, S. ; Sonobe, T. ; Masuda, K. ; Ohgaki, H.

Author_Institution

Inst. of Adv. Energy, Kyoto Univ., Uji, Japan

fYear

2009

fDate

21-25 Sept. 2009

Firstpage

1

Lastpage

2

Abstract

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.

Keywords

free electron lasers; photocathodes; submillimetre wave lasers; wigglers; photocathode RF gun; terahertz free electron laser amplifier; terahertz seeding system; undulators; Brightness; Cathodes; Electron beams; Free electron lasers; Laser excitation; Optical amplifiers; Pump lasers; Radio frequency; Radiofrequency amplifiers; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on

Conference_Location

Busan

Print_ISBN

978-1-4244-5416-7

Electronic_ISBN

978-1-4244-5417-4

Type

conf

DOI

10.1109/ICIMW.2009.5325607

Filename

5325607