7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-245-Pr2-249
DOI: 10.1051/jp4:2001245

Storage ring based FELs in Europe: Perspectives for new UV-VUV coherent sources

D. Garzella^{1, 2}, D. Nutarelli², E. Renault^{1, 2}, L. Nahon^{1, 2}, G. de Ninno^{1, 2}, M. Hirsch^{1, 2}, R. Roux^{2, 3, 4} and M.E. Couprie<sup>1, 2

1</sup>  Service de Photons, Atomes et Molécules, Commissariat à l'Énergie Atomique, DRECAM, Centre de Saclay, 91191 Gif-sur-Yvette, France
²  Laboratoire pour l'Utilisation du Rayonnement Électromagnétique, bâtiment 209D, BP. 34, 91898 Orsay cedex, France
³  Sincrotrone Trieste, S.S. 14, km 163.5, Area Science Park, Basovizza, 34012 Trieste, ltaly
⁴  SERA, Laboratoire de l'Accélérateur Linéaire, bâtiment 201, Centre Universitaire Paris-Sud, 91405 Orsay cedex, France

Abstract
Following the pioneering work on the Storage Ring ACO, new FEL projects have arised and grown in the last ten years. Among them, the Super ACO FEL, now operating in the 3-3.5 eV energy range, is the first source which has been used for scientific applications such as material sciences and biology. On the other hand, in order to extend the capabilites of such devices in terms of increased light power and generation of shorter wavelengths, new solutions, relying on the improvement of the optical cavities and on high order harmonic generation, are studied on the existing synchrotrons. They will be implemented on third generation light sources and will open new perspectives for UV-VUV FELs to be used in combination with the synchrotron radiation. The European FEL Project at the ELETTRA storage ring in Italy has recently come into operation, and is expected to extend its operating range below 200 nm. The proposed FEL on the new French SOLEIL project will be able to cover the 3-30 eV range in the future. All this activity will be presented.

© EDP Sciences 2001