Proceedings PaperRecent Experiments At The Los Alamos Free-Electron Laser
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Improvements in the operational characteristics of the Los Alamos free-electron laser have produced experimental results in reasonable agreement with theory and simulation. These experiments include suppressing sidebands by dispersive elements and cavity-length detuning, achieving higher extraction efficiencies, demonstrating deceleration of electrons in the bucket of a tapered wiggler, using a prebuncher at high power, lasing with a highly tapered wiggler, determining harmonic content, and observing harmonic lasing. The results of these experiments will be described.