Oral: Plasmon-driven high-energy light-matter interaction

ORAL

Abstract

Ultrahigh-energy light-matter interaction is of great interest in a wide range of applications including high-harmonic generation, ion acceleration, and laser-driven fusion. Recent works have shown that nanostructured materials have potential to enhance such an interaction. In this work, we theoretically investigate laser interaction with resonant gold nanoparticles. We employ particle-in-cell (PIC) simulations to study the role of plasmon excitation on high-intensity (1016 - 1020 Wcm‒2) laser-nanostructure interaction. We study temporal dynamic of plasmon excitation with laser pulses of different duration and intensity. We observe the plasmon excitation with field enhancement near the plasmon resonance frequency excitation in the vicinity of the nanostructure. We further rediscuss the implications of such interaction for electron density evolution and generation of higher harmonics. Our work can pave the way to a better control over high intensity laser-plasma interactions.

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Presenters

  • Durga P Khatua

    Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095, USA, Raja Ramanna Center for Advanced Technology, Indore-452013, India

Authors

  • Durga P Khatua

    Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095, USA, Raja Ramanna Center for Advanced Technology, Indore-452013, India

  • Pavel Shafirin

    Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095, USA, University of California, Los Angeles

  • Artur Davoyan

    Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095, USA, University of California Los Angeles, University of California, Los ANgeles, University of California, Los Angeles