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Proceedings Paper

Initial results of the infrared regenerative amplifier free electron laser experiment
Author(s): Dinh C. Nguyen; Richard L. Sheffield; Clifford M. Fortgang; John M. Kinross-Wright; Nizar A. Ebrahim; John C. Goldstein; David J. Goldstein; Kara L. Hayes; Scott K. Volz; Roger W. Warren; Michael E. Weber
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Paper Abstract

The Regenerative Amplifier Free-Electron Laser is a new FEL approach aimed at achieving the highest optical power from a compact RL-linac FEL. The key idea is to re-inject a small fraction of the optical power into a high-gain wiggler to enable the FEL to reach saturation in a few passes. The use of large outcoupling increases the FEL output efficiency and reduces the risk of optical damage to the feedback mirrors. This paper summarizes the design of the high-power IR regenerative amplifier FEL and describes the initial experimental results. The highest optical energy achieved thus far at 15.5 micrometers is 0.5 J over a train of 1000 micropulses. We infer a pulse energy of 0.5 mJ in each 10 ps micropulse, corresponding to a peak power of 50 MW.

Paper Details

Date Published: 1 November 1997
PDF: 12 pages
Proc. SPIE 3154, Coherent Electron-Beam X-Ray Sources: Techniques and Applications, (1 November 1997); doi: 10.1117/12.293369
Show Author Affiliations
Dinh C. Nguyen, Los Alamos National Lab. (United States)
Richard L. Sheffield, Los Alamos National Lab. (United States)
Clifford M. Fortgang, Los Alamos National Lab. (United States)
John M. Kinross-Wright, Los Alamos National Lab. (United States)
Nizar A. Ebrahim, Los Alamos National Lab. (United States)
John C. Goldstein, Los Alamos National Lab. (United States)
David J. Goldstein, Los Alamos National Lab. (United States)
Kara L. Hayes, Los Alamos National Lab. (United States)
Scott K. Volz, Los Alamos National Lab. (United States)
Roger W. Warren, Los Alamos National Lab. (United States)
Michael E. Weber, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 3154:
Coherent Electron-Beam X-Ray Sources: Techniques and Applications
Andreas K. Freund; Henry P. Freund; Malcolm R. Howells, Editor(s)

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