Characterization of ultraintense laser produced fast electron propagation in insulators vs. conductors by optical emission diagnostics

M. Manclossi 1, 2 J.J. Santos 1, 3 Jérôme Faure 1 A. Guenmie-Tafo 1 D. Batani 1 V. Tikhonchuk 3 A. Debayle 3 Victor Malka 1
1 LOA - Laboratoire d'optique appliquée
2 Dipartimento di Fisica "G. Occhialini," Università degli Studi di Milano Bicocca and INFM
3 CELIA - Centre d'Etudes Lasers Intenses et Applications
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.
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Journal articles
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Submitted on : Tuesday, July 13, 2010 - 5:49:39 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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M. Manclossi, J.J. Santos, Jérôme Faure, A. Guenmie-Tafo, D. Batani, et al.. Characterization of ultraintense laser produced fast electron propagation in insulators vs. conductors by optical emission diagnostics. Journal de Physique IV Colloque, 2006, 133, pp.499-502. ⟨10.1051/jp4:2006133102⟩. ⟨hal-00502336⟩

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