Stimulated Raman and Brillouin scattering of polarization-smoothed and temporally smoothed laser beams

Berger, R L; Lefebvre, E; Langdon, A B; Rothenberg, J E; Still, C H; Williams, E A

doi:10.1063/1.873713

Title: Stimulated Raman and Brillouin scattering of polarization-smoothed and temporally smoothed laser beams

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Abstract

Control of filamentation and stimulated Raman and Brillouin scattering is shown to be possible by use of both spatial and temporal smoothing schemes. The spatial smoothing is accomplished by the use of phase plates [Y. Kato and K. Mima, Appl. Phys. {bold 329}, 186 (1982)] and polarization smoothing [Lefebvre {ital et al.}, Phys. Plasmas {bold 5}, 2701 (1998)] in which the plasma is irradiated with two orthogonally polarized, uncorrelated speckle patterns. The temporal smoothing considered here is smoothing by spectral dispersion [Skupsky {ital et al.}, J. Appl. Phys. {bold 66}, 3456 (1989)] in which the speckle pattern changes on the laser coherence time scale. At the high instability gains relevant to laser fusion experiments, the effect of smoothing must include the competition among all three instabilities. {copyright} {ital 1999 American Institute of Physics.}

Authors:

Berger, R L; Lefebvre, E; Langdon, A B; Rothenberg, J E; Still, C H; Williams, E A ^[1]

Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)

Publication Date:: Thu Apr 01 00:00:00 EST 1999

OSTI Identifier:: 335587

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 6; Journal Issue: 4; Other Information: PBD: Apr 1999

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION; RAMAN EFFECT; BRILLOUIN EFFECT; POLARIZATION; LASER-PRODUCED PLASMA; BEAM-PLASMA SYSTEMS; LASER RADIATION; INERTIAL CONFINEMENT

Citation Formats


                    Berger, R L, Lefebvre, E, Langdon, A B, Rothenberg, J E, Still, C H, and Williams, E A. Stimulated Raman and Brillouin scattering of polarization-smoothed and temporally smoothed laser beams.  United States: N. p., 1999. 
        Web.  doi:10.1063/1.873713.

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                    Berger, R L, Lefebvre, E, Langdon, A B, Rothenberg, J E, Still, C H, & Williams, E A. Stimulated Raman and Brillouin scattering of polarization-smoothed and temporally smoothed laser beams.  United States.  https://doi.org/10.1063/1.873713

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                    Berger, R L, Lefebvre, E, Langdon, A B, Rothenberg, J E, Still, C H, and Williams, E A. 1999.  
        "Stimulated Raman and Brillouin scattering of polarization-smoothed and temporally smoothed laser beams".  United States.  https://doi.org/10.1063/1.873713.

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@article{osti_335587,

  title        = {Stimulated Raman and Brillouin scattering of polarization-smoothed and temporally smoothed laser beams},

  author       = {Berger, R L and Lefebvre, E and Langdon, A B and Rothenberg, J E and Still, C H and Williams, E A},

  abstractNote = {Control of filamentation and stimulated Raman and Brillouin scattering is shown to be possible by use of both spatial and temporal smoothing schemes. The spatial smoothing is accomplished by the use of phase plates [Y. Kato and K. Mima, Appl. Phys. {bold 329}, 186 (1982)] and polarization smoothing [Lefebvre {ital et al.}, Phys. Plasmas {bold 5}, 2701 (1998)] in which the plasma is irradiated with two orthogonally polarized, uncorrelated speckle patterns. The temporal smoothing considered here is smoothing by spectral dispersion [Skupsky {ital et al.}, J. Appl. Phys. {bold 66}, 3456 (1989)] in which the speckle pattern changes on the laser coherence time scale. At the high instability gains relevant to laser fusion experiments, the effect of smoothing must include the competition among all three instabilities. {copyright} {ital 1999 American Institute of Physics.}},

  doi          = {10.1063/1.873713},

  url          = {https://www.osti.gov/biblio/335587},
  journal      = {Physics of Plasmas},
number       = 4,

  volume       = 6,

  place        = {United States},

  year         = {Thu Apr 01 00:00:00 EST 1999},

  month        = {Thu Apr 01 00:00:00 EST 1999}

}

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