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Title

Maximizing energy deposition by shaping few-cycle laser pulses
Authors
Gateau, Julien
Patas, Alexander
Matthews, Mary Rebecca
Hermelin, Sylvain
Lindinger, Albrecht
Kasparian, Jérôme
Wolf, Jean-Pierre
Published in Journal of Physics. B, Atomic, Molecular and Optical Physics. 2018, vol. 51, no. 13, p. 135402
Abstract 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 air 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.
Identifiers
arXiv: 1806.08994
Note 11 pages, 6 figures
Full text
Article (1.8 MB) - public document Free access
Other version: https://doi.org/10.1088/1361-6455/aac783
Structures
Centres et instituts / Institut des sciences de l'environnement
Faculté des sciences / Section de physique / Groupe de physique appliquée
Research groups Groupe Wolf
Groupe Kasparian
ISE Pôle Sciences
ISE Pôle Informatique environnementale
Projects FNS: NCCR MUST
FNS: MHV fellowship grant number: PMPDP2-145444
Citation
(ISO format) 		GATEAU, Julien et al. Maximizing energy deposition by shaping few-cycle laser pulses. In: Journal of Physics. B, Atomic, Molecular and Optical Physics, 2018, vol. 51, n° 13, p. 135402. https://archive-ouverte.unige.ch/unige:105873

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Deposited on : 2018-06-26

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