0543664 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Nuter, R. - Korneev, Ph. - Dmitriev, E. - Thiele, I. - Tikhonchuk, Vladimir
Gain of electron orbital angular momentum in a direct laser acceleration process.
Physical Review E. Roč. 101, č. 5 (2020), č. článku 053202. ISSN 2470-0045. E-ISSN 2470-0053
Institucionální podpora: RVO:68378271
Klíčová slova: laser-plasma interaction * jets * magnetized plasmas
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.529, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevE.101.053202

Three-dimensional “particle in cell” simulations show that a quasistatic magnetic field can be generated in a plasma irradiated by a linearly polarized Laguerre-Gauss beam with a nonzero orbital angular momentum (OAM). Perturbative analysis of the electron dynamics in the low intensity limit and detailed numerical analysis predict a laser to electrons OAM transfer. Plasma electrons gain angular velocity thanks to the dephasing process induced by the combined action of the ponderomotive force and the laser induced–radial oscillation. Similar to the “direct laser acceleration,” where Gaussian laser beams transmit part of its axial momentum to electrons, Laguerre-Gaussian beams transfer a part of their orbital angular momentum to electrons through the dephasing process.
Trvalý link: http://hdl.handle.net/11104/0320846