Self-Consistent Calculation of Half-Harmonics Emission Generated by the Two-Plasmon--Decay Instability

ORAL

Abstract

Half-harmonics emission can be used as an effective diagnostic tool\footnote{ W. Seka \textit{et al.}, Phys. Fluids \textbf{28}, 2570 (1985).} for the two-plasmon--decay (TPD) instability.\footnote{ D. F. DuBois, D. A. Russell, and H. A. Rose, Phys. Rev. Lett. \textbf{74}, 3983 (1995); D. A. Russell and D. F. DuBois, Phys. Rev. Lett. \textbf{86}, 428 (2001).} However, interpretation of the half-harmonics spectrum is difficult because of its complicated generation mechanism. We have developed a code that can calculate half-harmonics emission self-consistently with the TPD instability. The results would be useful to interpret experimental data and help design experiments. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0001944.

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Authors

  • J. Zhang

    • Laboratory for Laser Energetics, U. of Rochester

  • J.F. Myatt

    • Laboratory for Laser Energetics, U. of Rochester

  • A.V. Maximov

    • Laboratory for Laser Energetics, U. of Rochester

  • R.W. Short

    • Laboratory for Laser Energetics, U. of Rochester

  • D.F. DuBois

    • LANL and Lodestar Research

  • D.A. Russell

    • Lodestar Research

  • H.X. Vu

    • U. Califonia, San Diego