Authors
K. Ta Phuoc, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
A. Rousse, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
M. Pittman, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
J.P. Rousseau, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
V. Malka, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
S. Fritzler, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
Donald P. Umstadter, University of Nebraska-LincolnFollow
D. Hulin, Laboratoire d'Optique Appliquée, Ecole Polytechnique, Chemin de la Hunière, France
Date of this Version
February 2003
Abstract
We have generated x-ray radiation from the nonlinear Thomson scattering of a 30 fs/1.5 J laser beam on plasma electrons. A collimated x-ray radiation with a broad continuous spectrum peaked at 0.15 keV with a significant tail up to 2 keV has been observed. These characteristics are found to depend strongly on the laser strength parameter a0. This radiative process is dominant for a0 greater than unity at which point the relativistic scattering of the laser light originates from MeV energy electrons inside the plasma.
Comments
Published by American Physical Society. Physical Review Letters, 91, 195001-1 (2003). http://prl.aps.org. Copyright © 2003 American Physical Society. Permission to use.