Exponential Gain and Saturation of a Self-Amplified Spontaneous Emission Free-Electron Laser-Reference-Cited by-同舟云学术

Exponential Gain and Saturation of a Self-Amplified Spontaneous Emission Free-Electron Laser

Published:2001-06-15 Issue:5524 Volume:292 Page:2037-2041
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Milton S. V.¹,Gluskin E.¹,Arnold N. D.¹,Benson C.¹,Berg W.¹,Biedron S. G.¹²,Borland M.¹,Chae Y.-C.¹,Dejus R. J.¹,Den Hartog P. K.¹,Deriy B.¹,Erdmann M.¹,Eidelman Y. I.¹,Hahne M. W.¹,Huang Z.¹,Kim K.-J.¹,Lewellen J. W.¹,Li Y.¹,Lumpkin A. H.¹,Makarov O.¹,Moog E. R.¹,Nassiri A.¹,Sajaev V.¹,Soliday R.¹,Tieman B. J.¹,Trakhtenberg E. M.¹,Travish G.¹,Vasserman I. B.¹,Vinokurov N. A.³,Wang X. J.,Wiemerslage G.¹,Yang B. X.¹

Affiliation:

1. Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.

2. MAX-Laboratory, University of Lund, 221 00 Lund, Sweden.

3. Budker Institute of Nuclear Physics, 630090 Novosibirsk, Russian Federation.

Abstract

Self-amplified spontaneous emission in a free-electron laser has been proposed for the generation of very high brightness coherent x-rays. This process involves passing a high-energy, high-charge, short-pulse, low-energy-spread, and low-emittance electron beam through the periodic magnetic field of a long series of high-quality undulator magnets. The radiation produced grows exponentially in intensity until it reaches a saturation point. We report on the demonstration of self-amplified spontaneous emission gain, exponential growth, and saturation at visible (530 nanometers) and ultraviolet (385 nanometers) wavelengths. Good agreement between theory and simulation indicates that scaling to much shorter wavelengths may be possible. These results confirm the physics behind the self-amplified spontaneous emission process and forward the development of an operational x-ray free-electron laser.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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