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Optical klystron experiments at Orsay on Super-Aco and prospects in the VUV

Journal Article · · Rev. Sci. Instrum.; (United States)
DOI:https://doi.org/10.1063/1.1140957· OSTI ID:5831233
This paper consists of a general presentation of the Storage Ring FEL activities at LURE (Orsay). We first summarize the results obtained previously with an optical klystron installed on the ACO storage ring, and then make a presentation of the different projects that have begun on the new storage ring Super-ACO. The ACO storage ring experiments were of two kinds: the Free Electron Laser oscillator (FEL), and the coherent harmonic generation (CHG). The first allowed us to reach the visible spectral range, between 6500 and 4600 A. In the second, we were able to produce coherent emission in the VUV: it was the shortest wavelengths (1773 and 1064 A) ever obtained with an optical klystron or an undulator acting as a nonlinear medium. In this last configuration, the fundamental wave was an external pulsed and doubled Nd-Yag laser, focused in the optical klystron. The new Super-ACO storage ring has been equipped with a new optical klystron. The first ''spontaneous emission'' spectra have been observed and they show that the performance is in good agreement with theoretical predictions. FEL oscillator experiments in the visible range are planned for the end of the year. In parallel, CHG experiments in the VUV will begin.
Research Organization:
Lure, CNRS/CEA/MEN bat.209d, Universite de Paris-Sud, 91405 Orsay Cedex, France (FR)
OSTI ID:
5831233
Journal Information:
Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 60:7; ISSN RSINA
Country of Publication:
United States
Language:
English