Journal ArticleDOI
Electron distribution anisotropy in laser-produced plasmas from X-ray line polarization measurements
Jean-Claude Kieffer,J. P. Matte,Henri Pépin,Mohamed Chaker,Y. Beaudoin,T. W. Johnston,C. Y. Chien,S. Coe,Gerard Mourou,J Dubau +9 more
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TLDR
From measurements of significant polarization of the He-like emission in a laser-produced plasma, a negative second-order (i.e., oblate) anisotropy of the electron velocity distribution function in the energy deposition region is inferred.Abstract:
We report the first measurements of significant polarization of the He-like emission in a laser-produced plasma. From these measurements we infer a negative second-order (i.e., oblate) anisotropy of the electron velocity distribution function in the energy deposition region. This result is in agreement with our kinetic Fokker-Planck calculations which indicate non-Maxwell behavior and strong anisotropy due to nonlocal electron heat flow.read more
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Journal ArticleDOI
Optics in the relativistic regime
TL;DR: In this paper, a number of consequences of relativistic-strength optical fields are surveyed, including wakefield generation, a relativistically version of optical rectification, in which longitudinal field effects could be as large as the transverse ones.
Journal ArticleDOI
Terawatt to Petawatt Subpicosecond Lasers
Michael D. Perry,Gerard Mourou +1 more
TL;DR: The application of the chirped-pulse amplification technique to solid-state lasers combined with the availability of broad-bandwidth materials has made possible the development of small-scale terawatt and now even petawatt laser systems.
Journal ArticleDOI
Ultrafast x‐ray sources*
Jean-Claude Kieffer,Mohamed Chaker,J. P. Matte,Henri Pépin,C. Y. Côté,Y. Beaudoin,T. W. Johnston,C. Y. Chien,S. Coe,Gerard Mourou,Olivier Peyrusse +10 more
TL;DR: In this article, a 2 psec temporal resolution of plasmas produced by the interaction between solid targets and a high contrast sub-picosecond table top terawatt (T3) laser at 1016 W/cm2 is used to study the basic processes which control the x-ray pulse duration.
Journal ArticleDOI
X‐ray spectroscopy of hot solid density plasmas produced by subpicosecond high contrast laser pulses at 1018–1019 W/cm2
Z. Jiang,Jean-Claude Kieffer,J. P. Matte,Mohamed Chaker,Olivier Peyrusse,D. Gilles,Georg Korn,Anatoly Maksimchuk,S. Coe,Gerard Mourou +9 more
TL;DR: In this paper, the authors analyzed K-shell spectra obtained from solid density plasmas produced by a high contrast (1010:1) sub-picosecond laser pulse (0.5 μm) at 1018-1019 W/cm2.