%0 Conference Paper
%F Oral 
%T Modeling of dense injection-seeded Ni-like Krypton plasma amplifiers
%+ Univ Politecn Madrid, ETS Ingenieros Ind, Inst Fusin Nucl, C Jose Gutierrez Abascal 2, E-28006 Madrid, Spain (IIFN)
%+ Laboratoire de physique des gaz et des plasmas (LPGP)
%+ Laboratoire d'optique appliquée (LOA)
%A Oliva, Eduardo
%A Depresseux, Adrien
%A Tissandier, Fabien
%A Gautier, Julien
%A Sebban, Stéphane
%A Maynard, Gilles
%< avec comité de lecture
%B Conference on X-Ray Lasers and Coherent X-Ray Sources - Development and Applications XI
%C San Diego, CA, United States
%8 2015-08-12
%D 2015
%R 10.1117/12.2187034
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]
%Z Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph]Conference papers
%X One promising way to reach ultra-short soft X-ray lasers is to guide an intense infrared pulse through a plasma channel generated in a high pressure gas. However, in such a case, strong non-linear effects, as overionization-induced refraction and self-focusing, hinder the propagation of the laser beam and thus the creation of the lasing ion and the population inversion. Using a particle-in-cell (PIC) code and a ray-tracing model, we demonstrate that a stable self-regulation mechanism between self-focusing and overionization appears, which enables guiding the infrared beam over several milimetres, well beyond the saturation length for amplification of the soft X-ray laser.
%G English
%L hal-01402233
%U https://hal-ensta-paris.archives-ouvertes.fr/hal-01402233
%~ X
%~ ENSTA
%~ CNRS
%~ UNIV-PSUD
%~ X-LOA
%~ X-DEP
%~ X-DEP-PHYS
%~ ENSTA_LOA
%~ UNIV-PARIS-SACLAY
%~ X-SACLAY
%~ ENSTA-SACLAY
%~ UMR8578
%~ GS-ENGINEERING
%~ INSTITUT-SCIENCES-LUMIERE