Suppression of power losses during laser pulse propagation in underdense plasma slab

Kirill V. Lezhnin; Kenan Qu; Nathaniel Fisch

doi:10.1117/12.2589672

18 April 2021 Suppression of power losses during laser pulse propagation in underdense plasma slab

Kirill V. Lezhnin, Kenan Qu, Nathaniel Fisch

Proceedings Volume 11778, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources IV; 117780K (2021) https://doi.org/10.1117/12.2589672
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

For current state-of-the-art terawatt lasers, the primary laser scattering mechanisms in plasma include Forward Raman Scattering (FRS), excitation of plasma waves, and the self-modulational instability (SMI). Using 2D PIC simulations, we demonstrate the dominance of the FRS in the regime with medium-to-low density plasma and non-relativistic laser fields. However, the use of multi-colored lasers with frequency detuning exceeding the plasma frequency suppresses the FRS. The laser power can then be transmitted efficiently.

Conference Presentation

Citation Download Citation

Kirill V. Lezhnin, Kenan Qu, and Nathaniel Fisch "Suppression of power losses during laser pulse propagation in underdense plasma slab", Proc. SPIE 11778, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources IV, 117780K (18 April 2021); https://doi.org/10.1117/12.2589672

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