Differences between intra- and extra-cavity pulse time structure ina hole-coupled free-electron laser |
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Authors: | Weits HH Knippels GMH van Werkhoven GHC Oepts D van Amersfoort PW |
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Institution: | FOM Inst. for Plasma Phys., Nieuwegein; |
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Abstract: | In the strong-slippage regime of a free-electron laser, the optical pulse inside the resonator is composed of a series of subsequently growing and decaying subpulses due to a limit-cycle oscillation. The picosecond time structure of the outcoupled pulses can be quite different from that of the intracavity pulse, in case of outcoupling through a hole and for specific resonator parameters. This is demonstrated by autocorrelation measurements and corroborated by simulations |
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