Comparison of natural and forced amplification regimes in plasma-based soft-x-ray lasers seeded by high-order harmonics

Abstract : The amplification of high-order harmonics (HOH) in a plasma-based amplifier is a multiscale, temporal phenomenon that couples plasma hydrodynamics, atomic processes, and HOH electromagnetic fields. We use a one-dimensional, time-dependent Maxwell-Bloch code to compare the natural amplification regime and another regime where plasma polarization is constantly forced by the HOH. In this regime, a 10-MW (i.e., 100 times higher than current seeded soft x-ray laser power), 1.5-mu J, 140-fs pulse free from the parasitic temporal structures appearing on the natural amplification regime can be obtained.
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Physical Review A, American Physical Society, 2011, 84 (1), 〈10.1103/PhysRevA.84.013811〉
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https://hal-ensta.archives-ouvertes.fr/hal-01406421
Contributeur : Pierre Zaparucha <>
Soumis le : jeudi 1 décembre 2016 - 10:50:15
Dernière modification le : jeudi 10 mai 2018 - 02:00:53

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Eduardo Oliva, Philippe Zeitoun, Marta Fajardo, Guillaume Lambert, David Ros, et al.. Comparison of natural and forced amplification regimes in plasma-based soft-x-ray lasers seeded by high-order harmonics. Physical Review A, American Physical Society, 2011, 84 (1), 〈10.1103/PhysRevA.84.013811〉. 〈hal-01406421〉

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