Influence of laser pulse duration on relativistic channels

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Abstract

A high-power (10 TW) laser is employed to generate relativistic channels in an underdense plasma. The lengths of the channels are measured by imaging the Thomson-scattered light, and the gas densities are determined through the forward Raman scattered light. The laser-pulse parameters are varied and their impact on the channel formation is studied. It is found that increasing the laser pulse duration in many cases produces longer channels, even as this implies reducing the laser peak power. A theoretical discussion is presented, proposing an explanation of the experimental results. (C) 2002 American Institute of Physics.

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  • Atom and Molecular Physics and Optics
Original languageEnglish
Pages (from-to)937-940
JournalPhysics of Plasmas
Volume9
Issue number3
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes

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