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APS » Journals » Phys. Rev. Lett. » Volume 81 » Issue 22
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Phys. Rev. Lett. 81, 4867–4870 (1998)

Measurements of Gain Larger than 105 at 12μm in a Self-Amplified Spontaneous-Emission Free-Electron Laser

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M. J. Hogan, C. Pellegrini, J. Rosenzweig, S. Anderson, P. Frigola, and A. Tremaine
Department of Physics and Astronomy, UCLA, Los Angeles, California 90095

C. Fortgang, D. C. Nguyen, R. L. Sheffield, and J. Kinross-Wright
Los Alamos National Laboratory, Los Alamos, New Mexico 87545

A. Varfolomeev, A. A. Varfolomeev, and S. Tolmachev
RRC–Kurchatov Institute, Moscow, Russia

Roger Carr
Stanford Synchrotron Radiation Laboratory, Palo Alto, California 94304

Received 29 April 1998; published in the issue dated 30 November 1998

We report measurements of very large output intensities corresponding to a gain larger than 105 for a single pass free-electron laser operating in the self-amplified spontaneous emission (SASE) mode at 12μm. We also report the observation and analysis of intensity fluctuations of the SASE radiation intensity in the high-gain regime. The results are compared with theoretical predictions and simulations.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.4867
DOI:
10.1103/PhysRevLett.81.4867
PACS:
41.60.Cr, 41.60.Ap
 
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