Efficient Raman Amplification past Wavebreaking

ORAL  · Invited

Abstract

.We present experimental results from the Raman amplification experimental platform at the University of Rochester’s Laboratory for Laser Energetics (LLE). This platform explores Raman amplification in a unique parameter space which includes a multi-joule pump and an adjustable-energy seed with seed intensities up to 7 x 1015 W/cm2, which is significantly more intense than prior experiments. Initial experiments have demonstrated single-pass Raman amplification in multiple focal configurations with energy gain factors as high as 30x, energy transferred to the seed exceeding 220 mJ, and record efficiencies as high as 11.7%. The efficiency is observed to scale with seed intensity. For intense seed pulses, efficient amplification is seen well into the wavebreaking regime, as predicted by particle-in-cell simulations [1].



References:

[1] M. R. Edwards et al., Phys. Plasmas 22, 074501 (2015).

*This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856, the U.S. Department of Energy under Awards DE-SC00215057 and DE-SC0016253.

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Presenters

  • Jessica Shaw

    • University of Rochester Laboratory for Laser Energetics
    • University of Rochester

Authors

  • Jessica Shaw

    • University of Rochester Laboratory for Laser Energetics
    • University of Rochester

  • Manfred Virgil V Ambat

    • University of Rochester, Laboratory for Laser Energetics
    • Laboratory for Laser Energetics, University of Rochester

  • Kyle R McMillen

    • University of Rochester

  • Jeremy Pigeon

    • University of Rochester, Laboratory for Laser Energetics
    • Laboratory for Laser Energetics

  • Sara Bucht

    • Laboratory for Laser Energetics

  • Christophe Dorrer

    • University of Rochester Laboratory for Laser Energetics
    • Laboratory for Laser Energetics

  • Isabelle LaBelle

    • Laboratory for Laser Energetics

  • Hans G Rinderknecht

    • Laboratory for Laser Energetics - Rochester

  • David P Turnbull

    • University of Rochester
    • University of Rochester Laboratory for Laser Energetics

  • Daniel J Haberberger

    • Lab for Laser Energetics

  • John P Palastro

    • University of Rochester
    • University of Rochester, Laboratory for Laser Energetics

  • Dustin H Froula

    • University of Rochester
    • University of Rochester, Laboratory for Laser Energetics