Propagation of a randomized 600-ps laser beam in a helium gas jet over long scale lengths

J. Faure; V. Malka; F. Amiranoff

Propagation of a randomized 600-ps laser beam in a helium gas jet over long scale lengths

J. Faure
, V. Malka
, F. Amiranoff

LULI

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

Résumé

An experimental investigation of the propagation of a randomized 600-ps laser pulse in a helium gas jet was done by developing a model. The model accounted for collisional ionization through inverse bremsstrahlung. The density and temperature evolution were resolved and their maps were retrieved through time resolved interferometry and Thomson scattering. An ionizatin front was observed. Nonhomogenous heating of the plasma took place due to beam diffraction. The results exhibited the diffraction of laser while propagation, which lead to decrease in laser intensity.

langue originale	Anglais
Pages (de - à)	264041-264047
Nombre de pages	7
journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	64
Numéro de publication	2 II
état	Publié - 1 août 2001

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title = "Propagation of a randomized 600-ps laser beam in a helium gas jet over long scale lengths",

abstract = "An experimental investigation of the propagation of a randomized 600-ps laser pulse in a helium gas jet was done by developing a model. The model accounted for collisional ionization through inverse bremsstrahlung. The density and temperature evolution were resolved and their maps were retrieved through time resolved interferometry and Thomson scattering. An ionizatin front was observed. Nonhomogenous heating of the plasma took place due to beam diffraction. The results exhibited the diffraction of laser while propagation, which lead to decrease in laser intensity.",

author = "J. Faure and V. Malka and F. Amiranoff",

year = "2001",

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AU - Malka, V.

AU - Amiranoff, F.

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Y1 - 2001/8/1

N2 - An experimental investigation of the propagation of a randomized 600-ps laser pulse in a helium gas jet was done by developing a model. The model accounted for collisional ionization through inverse bremsstrahlung. The density and temperature evolution were resolved and their maps were retrieved through time resolved interferometry and Thomson scattering. An ionizatin front was observed. Nonhomogenous heating of the plasma took place due to beam diffraction. The results exhibited the diffraction of laser while propagation, which lead to decrease in laser intensity.

AB - An experimental investigation of the propagation of a randomized 600-ps laser pulse in a helium gas jet was done by developing a model. The model accounted for collisional ionization through inverse bremsstrahlung. The density and temperature evolution were resolved and their maps were retrieved through time resolved interferometry and Thomson scattering. An ionizatin front was observed. Nonhomogenous heating of the plasma took place due to beam diffraction. The results exhibited the diffraction of laser while propagation, which lead to decrease in laser intensity.

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M3 - Article

AN - SCOPUS:17144459059

SN - 1539-3755

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JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

IS - 2 II

ER -

Propagation of a randomized 600-ps laser beam in a helium gas jet over long scale lengths

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