Enhanced Spatiotemporal Laser-Beam Smoothing in Gas-Jet Plasmas

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

doi:10.1103/PhysRevLett.90.075002

Enhanced Spatiotemporal Laser-Beam Smoothing in Gas-Jet Plasmas

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

Laboratory d'Optique Appliquée, ENSTA, CNRS-École Polytechnique
CNRS
Univ. Bordeaux
LULI

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

Spatiotemporal smoothing of large-scale laser intensity fluctuations is observed for a laser beam focused into underdense helium plasmas. This smoothing is found to be severely enhanced when focusing the laser beam into a helium gas jet. In contrast to other experiments with preformed plasmas, the average and the peak laser intensities are well below the threshold for ponderomotive self-focusing. The coherence characteristics of the transmitted light are measured for various electron densities, and the smoothing effect is explained by multiple scattering of laser light on self-induced density perturbations.

langue originale	Anglais
Pages (de - à)	4
Nombre de pages	1
journal	Physical Review Letters
Volume	90
Numéro de publication	7
Les DOIs	https://doi.org/10.1103/PhysRevLett.90.075002
état	Publié - 1 janv. 2003

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10.1103/PhysRevLett.90.075002

Contient cette citation

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title = "Enhanced Spatiotemporal Laser-Beam Smoothing in Gas-Jet Plasmas",

abstract = "Spatiotemporal smoothing of large-scale laser intensity fluctuations is observed for a laser beam focused into underdense helium plasmas. This smoothing is found to be severely enhanced when focusing the laser beam into a helium gas jet. In contrast to other experiments with preformed plasmas, the average and the peak laser intensities are well below the threshold for ponderomotive self-focusing. The coherence characteristics of the transmitted light are measured for various electron densities, and the smoothing effect is explained by multiple scattering of laser light on self-induced density perturbations.",

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

year = "2003",

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doi = "10.1103/PhysRevLett.90.075002",

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AU - Malka, V.

AU - Faure, J.

AU - Hüller, S.

AU - Tikhonchuk, V. T.

AU - Weber, S.

AU - Amiranoff, F.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - Spatiotemporal smoothing of large-scale laser intensity fluctuations is observed for a laser beam focused into underdense helium plasmas. This smoothing is found to be severely enhanced when focusing the laser beam into a helium gas jet. In contrast to other experiments with preformed plasmas, the average and the peak laser intensities are well below the threshold for ponderomotive self-focusing. The coherence characteristics of the transmitted light are measured for various electron densities, and the smoothing effect is explained by multiple scattering of laser light on self-induced density perturbations.

AB - Spatiotemporal smoothing of large-scale laser intensity fluctuations is observed for a laser beam focused into underdense helium plasmas. This smoothing is found to be severely enhanced when focusing the laser beam into a helium gas jet. In contrast to other experiments with preformed plasmas, the average and the peak laser intensities are well below the threshold for ponderomotive self-focusing. The coherence characteristics of the transmitted light are measured for various electron densities, and the smoothing effect is explained by multiple scattering of laser light on self-induced density perturbations.

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DO - 10.1103/PhysRevLett.90.075002

M3 - Article

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JF - Physical Review Letters

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Enhanced Spatiotemporal Laser-Beam Smoothing in Gas-Jet Plasmas

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