Laser duration and intensity limits in plasma backward Raman amplifiers

V. M. Malkin; Z. Toroker; N. J. Fisch

doi:10.1063/1.3683558

Laser duration and intensity limits in plasma backward Raman amplifiers

V. M. Malkin, Z. Toroker, N. J. Fisch

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22 Scopus citations

Abstract

The shortest duration and the largest non-focused intensity of laser pulses produced by means of backward Raman amplification (BRA) in plasmas are calculated. These limits occur in moderately undercritical plasmas and are imposed by combined effects of moderately small group velocity dispersion and relativistic electron nonlinearity of the amplified pulses. The efficient BRA range covered by this theory is broader than one known previously. This can be useful for BRA of x-ray pulses in regular or compressed solids and ultra-powerful optical pulses in the lowest density solids.

Original language	English (US)
Article number	023109
Journal	Physics of Plasmas
Volume	19
Issue number	2
DOIs	https://doi.org/10.1063/1.3683558
State	Published - Feb 2012

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.3683558

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abstract = "The shortest duration and the largest non-focused intensity of laser pulses produced by means of backward Raman amplification (BRA) in plasmas are calculated. These limits occur in moderately undercritical plasmas and are imposed by combined effects of moderately small group velocity dispersion and relativistic electron nonlinearity of the amplified pulses. The efficient BRA range covered by this theory is broader than one known previously. This can be useful for BRA of x-ray pulses in regular or compressed solids and ultra-powerful optical pulses in the lowest density solids.",

author = "Malkin, {V. M.} and Z. Toroker and Fisch, {N. J.}",

note = "Funding Information: This work was supported through the NNSA SSAA Program through DOE Research Grant No. DE274-FG52-08NA28553.",

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AU - Toroker, Z.

AU - Fisch, N. J.

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Y1 - 2012/2

N2 - The shortest duration and the largest non-focused intensity of laser pulses produced by means of backward Raman amplification (BRA) in plasmas are calculated. These limits occur in moderately undercritical plasmas and are imposed by combined effects of moderately small group velocity dispersion and relativistic electron nonlinearity of the amplified pulses. The efficient BRA range covered by this theory is broader than one known previously. This can be useful for BRA of x-ray pulses in regular or compressed solids and ultra-powerful optical pulses in the lowest density solids.

AB - The shortest duration and the largest non-focused intensity of laser pulses produced by means of backward Raman amplification (BRA) in plasmas are calculated. These limits occur in moderately undercritical plasmas and are imposed by combined effects of moderately small group velocity dispersion and relativistic electron nonlinearity of the amplified pulses. The efficient BRA range covered by this theory is broader than one known previously. This can be useful for BRA of x-ray pulses in regular or compressed solids and ultra-powerful optical pulses in the lowest density solids.

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Laser duration and intensity limits in plasma backward Raman amplifiers

Abstract

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