Wakefield evolution and electron acceleration in interaction of frequency-chirped laser pulse with inhomogeneous plasma

The nonlinear interaction of an ultra-short intense frequency-chirped laser pulse with an underdense plasma is studied. The effects of plasma inhomogeneity and laser parameters such as chirp, pulse duration, and intensity on plasma density and wakefield evolutions, and electron acceleration are exam...

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Bibliographic Details
Published in:Physics of plasmas 2017-02, Vol.24 (2)
Main Authors: Rezaei-Pandari, M., Niknam, A. R., Massudi, R., Jahangiri, F., Hassaninejad, H., Khorashadizadeh, S. M.
Format: Article
Language:English
Subjects:
Electron acceleration
Inhomogeneity
Lasers
Plasma
Plasma density
Plasma physics
Pulse duration
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Summary:The nonlinear interaction of an ultra-short intense frequency-chirped laser pulse with an underdense plasma is studied. The effects of plasma inhomogeneity and laser parameters such as chirp, pulse duration, and intensity on plasma density and wakefield evolutions, and electron acceleration are examined. It is found that a properly chirped laser pulse could induce a stronger laser wakefield in an inhomogeneous plasma and result in higher electron acceleration energy. It is also shown that the wakefield amplitude is enhanced by increasing the slope of density in the inhomogeneous plasma.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4976127