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

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

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.

Original language	English
Pages (from-to)	264041-264047
Number of pages	7
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	64
Issue number	2 II
Publication status	Published - 1 Aug 2001

Cite this

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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.",

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AU - Malka, V.

AU - Amiranoff, F.

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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.

UR - https://www.scopus.com/pages/publications/17144459059

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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

Abstract

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