Abstract
Super-radiant emission from a wiggling short electron bunch, is strongly suppressed at high frequencies in comparison with radiation, obtained in a FEL if an ultra-short e-beam pulse of the same total charge is available. However, radiation intensity of a wiggling short electron bunch can be greatly enhanced by means of energy modulation. In this way, a super-radiant FEL source driven by short electron bunches and operating in the Tera-Hertz regime can be realized. Analytical evaluations and numerical simulations utilizing a space-frequency 3D model show, that a linear energy modulation enables one to increase the power of super-radiant emission by few orders of magnitude. Possible limitations in application of this method are also discussed, as well as a spectral purity of enhanced radiation.
Original language | English |
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Pages | 79-82 |
Number of pages | 4 |
State | Published - 2006 |
Event | 28th International Free Electron Laser Conference, FEL 2006 - Berlin, Germany Duration: 27 Aug 2006 → 1 Sep 2006 |
Conference
Conference | 28th International Free Electron Laser Conference, FEL 2006 |
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Country/Territory | Germany |
City | Berlin |
Period | 27/08/06 → 1/09/06 |