Raman Spectroscopy Diagnostic Development for Dynamic Compression Experiments on OMEGA

ORAL

Abstract

The pressures reached in dynamic compression experiments are sufficient to disrupt the electronic structure of matter, often inducing chemical and physical transitions. These dynamic processes are not directly measured by existing diagnostics that rely on a material’s ability to scatter x rays. To this end, our work will develop a single-shot, nanosecond-scale Raman spectrometer for the OMEGA Laser System at the Laboratory for Laser Energetics. This diagnostic will measure the intensity and wavelength of a Raman-backscattered 266-nm probe from laser-compressed materials. This diagnostic will directly probe the evolution of bond character of materials at high-energy-density conditions. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.

*Partial funding for this research was provided by the Center for Matter at Atomic Pressures (CMAP), a National Science Foundation (NSF) Physics Frontier Center, under Award PHY-2020249. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect those of the National Science Foundation.

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Presenters

  • Alexa LaPierre

    • University of Rochester

Authors

  • Alexa LaPierre

    • University of Rochester

  • Michelle C Marshall

    • University of Rochester

  • Joseph D Katz

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

  • Andrew Sorce

    • Laboratory for Laser Energetics

  • Robert Boni

    • Laboratory for Laser Energetics

  • Gilbert W Collins

    • University of Rochester

  • Ryan Rygg

    • Laboratory for Laser Energetics