Ultrashort laser pulses and ultrashort electron bunches generated in relativistic laser-plasma interaction

Jérôme Faure 1 Y. Glinec 1 Guilhem Gallot 2 Victor Malka 1
1 LOA - Laboratoire d'optique appliquée
2 LOB - Laboratoire d'optique et biosciences
Abstract : An experimental study of the interaction of ultrashort laser pulses with underdense plasmas in the relativistic regime is presented. A parameter regime of particular interest was found: the so-called bubble regime. In this regime, the laser pulse is focused to relativistic intensities and its pulse duration is comparable to or shorter than the plasma period. A wealth of physical phenomena occurs for such physical parameters. These phenomena have multiple signatures which have been investigated experimentally: (i) the generation of a high quality electron beam (high energy, very collimated, quasimonoenergetic energy distribution); (ii) the laser pulse temporal shortening in nonlinear plasma waves. In addition, experimental results suggest that the electron beam produced in this way has temporal structures shorter than 50 fs.
Keywords : high-speed optical techniques plasma light propagation relativistic plasmas electron beams plasma nonlinear waves
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Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00502352
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Submitted on : Tuesday, July 13, 2010 - 6:26:41 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:02 AM

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Jérôme Faure, Y. Glinec, Guilhem Gallot, Victor Malka. Ultrashort laser pulses and ultrashort electron bunches generated in relativistic laser-plasma interaction. Physics of Plasmas, American Institute of Physics, 2006, 13 (5), pp.056706. ⟨10.1063/1.2180727⟩. ⟨hal-00502352⟩

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