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

doi:10.1209/0295-5075/88/54002

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

Synchrotron SOLEIL
Institut Pierre Simon Laplace, CNRS and CEA
Riken
ENEA Centro Ricerche Frascati
Institute for Molecular Science

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	54002
Journal	EPL
Volume	88
Issue number	5
DOIs	https://doi.org/10.1209/0295-5075/88/54002
Publication status	Published - 1 Dec 2009

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title = "Seed level requirement for improving the temporal coherence of a Free-Electron Laser",

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.",

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AU - Lambert, G.

AU - Hara, T.

AU - Labat, M.

AU - Tanikawa, T.

AU - Tanaka, Y.

AU - Yabashi, M.

AU - Garzella, D.

AU - Carré, B.

AU - Couprie, M. E.

PY - 2009/12/1

Y1 - 2009/12/1

N2 - 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.

AB - 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.

U2 - 10.1209/0295-5075/88/54002

DO - 10.1209/0295-5075/88/54002

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JO - EPL

JF - EPL

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

Abstract

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