Dependence of relativistic self-guiding and raman forward scattering on duration and chirp of an intense laser pulse propagating in a plasma

Details Dependence of relativistic self-guiding and raman forward scattering on duration and chirp of an intense laser pulse propagating in a plasma Dependence of relativistic self-guiding and raman forward scattering on duration and chirp of an intense laser pulse propagating in a plasma

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..611..185y&link_type=abstract

SUPERSTRONG FIELDS IN PLASMAS: Second International Conference on Superstrong Fields in Plasmas, Second International Conference

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3

Rayleigh Scattering, Stimulated Brillouin And Raman Scattering, Ultrafast Processes, Optical Pulse Generation And Pulse Compression, Nonlinear Phenomena: Waves, Wave Propagation, And Other Interactions

Scientific paper

Relativistic self-guiding and Raman forward scattering of an intense ultrashort laser pulse propagating in an underdense plasma were studied using a terawatt Ti:sapphire laser system. The dependence of these processes on the duration and frequency chirp of the laser pulse was investigated by detuning the laser compressor. We found that the efficiency of Raman forward scattering is enhanced for a positively chirped pulse and diminished for a negatively chirped pulse. In addition, as a result of the dependence on pulse duration and peak power, an optimal duration for Raman forward scattering was found when the pulse energy and spectral bandwidth were fixed. On the other hand, relativistic self-guiding of the laser pulse was affected by the pulse duration while no dependence on the chirp was observed. .

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