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Article Dans Une Revue Journal of Physics B: Atomic, Molecular and Optical Physics Année : 2018

Maximizing energy deposition by shaping few-cycle laser pulses

Résumé

We experimentally investigate the impact of pulse shape on the dynamics of laser-generated plasma in rare gases. Fast-rising triangular pulses with a slower decay lead to early ionization of the gas and depose energy more efficiently than their temporally reversed counterparts. As a result, in both argon and krypton, the induced shockwave as well as the plasma luminescence are stronger. This is due to an earlier availability of free electrons to undergo inverse Bremsstrahlung on the pulse trailing edge. Our results illustrate the ability of adequately tailored pulse shapes to optimize the energy deposition in gas plasmas.

Dates et versions

hal-02285753 , version 1 (13-09-2019)

Identifiants

Citer

J. Gateau, A. Patas, M. Matthews, Sylvain Hermelin, A. Lindinger, et al.. Maximizing energy deposition by shaping few-cycle laser pulses. Journal of Physics B: Atomic, Molecular and Optical Physics, 2018, 51 (13), pp.135402. ⟨10.1088/1361-6455/aac783⟩. ⟨hal-02285753⟩
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