corner
corner

Phys. Rev. E 77, 026408 (2008) [8 pages]

Fast electron transport and induced heating in solid targets from rear-side interferometry imaging

Download: PDF (681 kB) Buy this article Export: BibTeX or EndNote (RIS)

G. Malka1,*, Ph. Nicolaï2,†, E. Brambrink3, J. J. Santos2, M. M. Aléonard1, K. Amthor4, P. Audebert3, J. Breil2, G. Claverie1, M. Gerbaux1, F. Gobet1, F. Hannachi1, V. Méot5, P. Morel5, J. N. Scheurer1, M. Tarisien1, and V. Tikhonchuk2
1Université Bordeaux 1, CNRS/IN2P3, Centre d’Etudes Nucléaires de Bordeaux Gradignan (CENBG), Chemin du Solarium, 33175 Gradignan, France
2Centre Lasers Intenses et Applications (CELIA), Université Bordeaux 1-CEA-CNRS, 33405 Talence cedex, France
3Laboratoire pour l’Utilisation de Lasers Intenses (LULI), CNRS-CEA-Ecole Polytechnique-Université Pierre et Marie Curie, 91128 Palaiseau Cedex, France
4Institut fur Optik und Quantenelektronik, Friedrich-Schiller-Universitat, Jena, Germany and
5Commissariat à l’Energie Atomique, Service de Physique Nucléaire, 91680 Bruyères-Le-Châtel, France

Received 18 July 2007; published 25 February 2008

Fast adiabatic plasma heating of a thin solid target irradiated by a high intensity laser has been observed by an optical fast interferometry diagnostic. It is driven by the hot electron current induced by the laser plasma interaction at the front side of the target. Radial and longitudinal temperature profiles are calculated to reproduce the observed rear-side plasma expansion. The main parameters of the suprathermal electrons (number, temperature, and divergence) have been deduced from these observations.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.77.026408
DOI:
10.1103/PhysRevE.77.026408
PACS:
52.50.Jm, 52.25.Xz

*malka@cenbg.in2p3.fr

nicolai@celia.u-bordeaux1.fr