| Numéro |
J. Phys. IV France
Volume 133, June 2006
|
|
|---|---|---|
| Page(s) | 499 - 502 | |
| DOI | https://doi.org/10.1051/jp4:2006133102 | |
| Publié en ligne | 16 juin 2006 | |
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 499-502
DOI: 10.1051/jp4:2006133102
1 Laboratoire d'Optique Appliquée - ENSTA, CNRS, École Polytechnique, Palaiseau, France
2 Dipartimento di fisica "G. Occhialini", Università di Milano-Bicocca, Milano, Italy
3 Centre Lasers Intenses et Applications, Universitè Bordeaux 1-CNRS-CEA, Talence, France
© EDP Sciences 2006
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 499-502
DOI: 10.1051/jp4:2006133102
Characterization of ultraintense laser produced fast electron propagation in insulators vs. conductors by optical emission diagnostics
M. Manclossi1, 2, J.J. Santos1, 3, J. Faure1, A. Guenmie-Tafo1, D. Batani1, V. Tikhonchuk3, A. Debayle3 and V. Malka11 Laboratoire d'Optique Appliquée - ENSTA, CNRS, École Polytechnique, Palaiseau, France
2 Dipartimento di fisica "G. Occhialini", Università di Milano-Bicocca, Milano, Italy
3 Centre Lasers Intenses et Applications, Universitè Bordeaux 1-CNRS-CEA, Talence, France
Abstract
The transport of an intense electron-beam produced by Ultra High
Intensity laser pulses through metals and insulators has been
studied by imaging with high resolution the optical emission
(Optical Transition Radiation, Thermal and Cherenkov emission) due
to electron transit through the targets. It is observed that if the
target is an insulator the fast electron beam undergoes strong
filamentation and the filaments increase in number with plastic
thickness, with a characteristic growth rate and transversal scale
in good agreement with analytical predictions based on electric
field instabilities in the beam ionization front.
© EDP Sciences 2006