Chaotic dynamics in a storage-ring free electron laser |
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| Authors: | G De Ninno D Fanelli C Bruni ME Couprie |
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| Institution: | (1) CEA, DSM/DRECAM/SPAM, CEA-Saclay, 91191 Gif-sur-Yvette, France, FR;(2) LURE, batiment 209 D, Université de Paris-Sud, 91405 Orsay Cedex, France, FR;(3) NADA, KTH, 10044 Stockholm, Sweden, SE |
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| Abstract: | The temporal dynamics of a storage-ring Free Electron Laser is here investigated with particular attention to the case in
which an external modulation is applied to the laser-electron beam detuning. The system is shown to produce bifurcations as
well as chaotic regimes. The peculiarities of this phenomenon with respect to the analogous behaviour displayed by conventional
laser sources are pointed out. Theoretical results, obtained by means of a phenomenological model reproducing the evolution
of the main statistical parameters of the system, are shown to be in a good agreement with experiments carried out on the
Super-ACO Free Electron Laser.
Received 27 March 2002 / Received in final form 17 July 2002 Published online 21 January 2003
RID="a"
ID="a"Present address: Sincrotone Trieste, 34012 Trieste, Italy.
RID="b"
ID="b"e-mail: fanelli@nada.kth.se |
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| Keywords: | PACS 41 60 Cr Free-electron lasers – 05 45 Gg Control of chaos applications of chaos |
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