Seed level requirement for improving the temporal coherence of a Free-Electron Laser

G. Lambert, T. Hara, M. Labat, T. Tanikawa, Y. Tanaka, M. Yabashi, D. Garzella, B. Carré, M.E. Couprie

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Abstract

The temporal coherence of Free-Electron Laser (FEL) sources, which exhibit, in the self-amplified spontaneous-emission mode, spiking spectral and temporal distributions, can be drastically improved by seeding with an external laser or high-order harmonics. Here, experiments at 160 nm put in evidence that the improvement of spectral properties (and thus temporal coherence) of the FEL radiation takes place for a larger seed intensity than the one required to overcome the shot noise. © Europhysics Letters Association.
Original languageEnglish
Article number54002
Pages (from-to)-
JournalEurophysics Letters
Volume88
Issue number5
DOIs
Publication statusPublished - 2009
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Lambert, G., Hara, T., Labat, M., Tanikawa, T., Tanaka, Y., Yabashi, M., ... Couprie, M. E. (2009). Seed level requirement for improving the temporal coherence of a Free-Electron Laser. Europhysics Letters, 88(5), -. [54002]. https://doi.org/10.1209/0295-5075/88/54002