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22 September 2015 Modeling of dense injection-seeded Ni-like Krypton plasma amplifiers
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Abstract
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 overionizationinduced 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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eduardo Oliva, Adrien Depresseux, Fabien Tissandier, Julien Gautier, Stéphane Sebban, and Gilles Maynard "Modeling of dense injection-seeded Ni-like Krypton plasma amplifiers", Proc. SPIE 9589, X-Ray Lasers and Coherent X-Ray Sources: Development and Applications XI, 95890E (22 September 2015); https://doi.org/10.1117/12.2187034
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