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Non-linear interaction of ultra-intense ultra-short laser pulse with a relativistic flying double-sided dense plasma slab/mirror

Published online by Cambridge University Press:  24 February 2014

Vineeta Jain ,
K.P. Maheshwari ,
N.K. Jaiman  and
Harish Malav
Vineeta Jain
Affiliation:
DST-Project, Vardhaman Mahaveer Open University, Kota, India
K.P. Maheshwari*
Affiliation:
DST-Project, Vardhaman Mahaveer Open University, Kota, India
N.K. Jaiman
Affiliation:
Department of Pure and Applied Physics, University of Kota, India
Harish Malav
Affiliation:
DST-Project, Vardhaman Mahaveer Open University, Kota, India
*
Address correspondence and reprint requests to: K.P. Maheshwari, DST-Project, Vardhaman Mahaveer Open University, Rawat-Bhata Road, Kota-324010, India. E-mail: [email protected]
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Abstract

Analytical and numerical investigation of the reflection and transmission of a counter-propagating relativistically strong laser pulse from a relativistically flying dense plasma double-sided mirror is studied. We assume that the incident laser pulse is short, so that we can neglect the slow ion dynamics and consider the electron motion only. Numerical results of the amplitudes of the reflected/transmitted electric fields from a uniformly moving mirror, accelerated mirror, and oscillating mirror are obtained. Fourier spectrum of the reflected intensity from the moving mirror shows that the intensity decreases with increase in the frequency. The reflected pulse has an up-shifted frequency and increased intensity. It is seen that the first few cycles of the reflected radiation exhibit presence of high harmonics, while the later cycles are compressed together with harmonics in comparison with the earlier cycles. The variation of the reflection coefficient for a uniformly moving mirror as a function of the thin foil plasma-density parameter is numerically studied.

Keywords

Double plasma mirrorFlying mirrorHigh-harmonic generationHigh-power X-ray sourceIntense-laser-plasma interaction
Type
Research Article
Information
Laser and Particle Beams , Volume 32 , Issue 2 , June 2014 , pp. 253 - 260
Copyright
Copyright © Cambridge University Press 2014 

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