Enhanced spatiotemporal laser-beam smoothing in gas-jet plasmas

V. Malka; J. Faure; S. Hüller; V. T. Tikhonchuk; S. Weber; F. Amiranoff

Enhanced spatiotemporal laser-beam smoothing in gas-jet plasmas

V. Malka
, J. Faure
, S. Hüller
, V. T. Tikhonchuk
, S. Weber
, F. Amiranoff

Research output: Contribution to journal › Article › peer-review

Abstract

The plasma smoothing effect in the interaction of a laser beam with a gas jet is experimentally demonstrated. This smoothing operates well below the thresholds for parametric instabilities and self-focusing; it increases with the gas density and is more efficient in the nonpreformed plasma case. It is explained by a new mechanism - the multiple scattering of the laser light on nonstationary density perturbations driven by ionization, the ponderomotive force, and localized electron heating.

Original language	English
Article number	075002
Pages (from-to)	075002/1-075002/4
Journal	Physical Review Letters
Volume	90
Issue number	7
Publication status	Published - 21 Feb 2003

Cite this

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title = "Enhanced spatiotemporal laser-beam smoothing in gas-jet plasmas",

abstract = "The plasma smoothing effect in the interaction of a laser beam with a gas jet is experimentally demonstrated. This smoothing operates well below the thresholds for parametric instabilities and self-focusing; it increases with the gas density and is more efficient in the nonpreformed plasma case. It is explained by a new mechanism - the multiple scattering of the laser light on nonstationary density perturbations driven by ionization, the ponderomotive force, and localized electron heating.",

author = "V. Malka and J. Faure and S. H{\"u}ller and Tikhonchuk, \{V. T.\} and S. Weber and F. Amiranoff",

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AU - Malka, V.

AU - Faure, J.

AU - Hüller, S.

AU - Tikhonchuk, V. T.

AU - Weber, S.

AU - Amiranoff, F.

PY - 2003/2/21

Y1 - 2003/2/21

N2 - The plasma smoothing effect in the interaction of a laser beam with a gas jet is experimentally demonstrated. This smoothing operates well below the thresholds for parametric instabilities and self-focusing; it increases with the gas density and is more efficient in the nonpreformed plasma case. It is explained by a new mechanism - the multiple scattering of the laser light on nonstationary density perturbations driven by ionization, the ponderomotive force, and localized electron heating.

AB - The plasma smoothing effect in the interaction of a laser beam with a gas jet is experimentally demonstrated. This smoothing operates well below the thresholds for parametric instabilities and self-focusing; it increases with the gas density and is more efficient in the nonpreformed plasma case. It is explained by a new mechanism - the multiple scattering of the laser light on nonstationary density perturbations driven by ionization, the ponderomotive force, and localized electron heating.

UR - https://www.scopus.com/pages/publications/0037458386

M3 - Article

AN - SCOPUS:0037458386

SN - 0031-9007

VL - 90

SP - 075002/1-075002/4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 7

M1 - 075002

ER -

Enhanced spatiotemporal laser-beam smoothing in gas-jet plasmas

Abstract

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