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arXiv · 2103.03744

Gamma-Ray Flash Generation in Irradiating Thin Foil Target by Single Cycle Tightly Focused Extreme Power Laser Pulse

Prokopis Hadjisolomou·Tae Moon Jeong·Petr Valenta·Georg Korn·Sergei Bulanov
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Abstract

We present a regime where an ultra-intense laser pulse interacting with a foil target results in high $\gamma$-photon conversion efficiency, obtained via three-dimensional quantum-electrodynamics particle-in-cell simulations. A single-cycle laser pulse is used under the tight-focusing condition for obtaining the $\mathrm{\lambda}^3$ regime. The simulations employ a radially polarized laser as it results in higher $\gamma$-photon conversion efficiency compared to both azimuthal and linear polarizations. A significant fraction of the laser energy is transferred to positrons, while a part of the electromagnetic wave escapes the target as attosecond single-cycle pulses.

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Prokopis Hadjisolomou, Tae Moon Jeong, Petr Valenta, Georg Korn, Sergei Bulanov. 2021-03-05. Gamma-Ray Flash Generation in Irradiating Thin Foil Target by Single Cycle Tightly Focused Extreme Power Laser Pulse. https://doi.org/10.1103/physreve.104.015203

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