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Numerical Simulation of Plasma-Based Raman Amplification of Laser Pulses to Petawatt Powers

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Author(s)

Raoul M. G. M. Trines, Frederico Fiuza, Ricardo A. Fonseca, Luis O. Silva, Robert Bingham, R. Alan Cairns, Peter A. Norreys

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Abstract

Contemporary high-power laser systems make use of solid-state laser technology to reach petawatt pulse powers. The breakdown threshold for optical components in these systems, however, demands beam diameters up to 1 m. Raman amplification of laser beams promises a breakthrough by the use of much smaller amplifying media, i.e., millimeter-diameter-wide plasmas. Through the first large-scale multidimensional particle-in-cell simulations of this process, we have identified the parameter regime where multipetawatt peak laser powers can be reached, while the influence of damaging laser-plasma instabilities is only minor. Snapshots of the probe laser pulse being amplified, generated using state-of-the-art visualization techniques, are presented.

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Original languageEnglish
Pages (from-to)2622-2623
Number of pages2
JournalIEEE Transactions on Plasma Science
Volume39
Issue number11
DOIs
Publication statusPublished - Nov 2011

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