Gamma-ray flash generation in irradiating a thin foil target by a single-cycle tightly focused extreme power laser pulse

0546769 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Hadjisolomou, Prokopis - Jeong, Tae Moon - Valenta, Petr - Korn, Georg - Bulanov, Sergey V.
Gamma-ray flash generation in irradiating a thin foil target by a single-cycle tightly focused extreme power laser pulse.
Physical Review E. Roč. 104, č. 1 (2021), č. článku 015203. ISSN 2470-0045. E-ISSN 2470-0053
Grant CEP: GA MŠMT EF15_003/0000449
Grant ostatní: OP VVV - HiFi(XE) CZ.02.1.01/0.0/0.0/15_003/0000449
Výzkumná infrastruktura: ELI Beamlines III - 90141
Institucionální podpora: RVO:68378271
Klíčová slova: relativistic laser plasma * extreme field limits * gamma ray flash
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.707, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevE.104.015203

We present a regime where an ultraintense laser pulse interacting with a foil target results in high γ -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 λ3 regime. The simulations employ a radially polarized laser as it results in higher γ -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.

Trvalý link: http://hdl.handle.net/11104/0323156