Electromagnetic Burst Generation during Annihilation of Magnetic Field in Relativistic Laser-Plasma Interaction

0580053 - ÚFP 2024 RIV US eng J - Článek v odborném periodiku
Gu, Yanjun - Pegoraro, F. - Sasorov, P. V. - Golovin, D. - Yogo, A. - Korn, G. - Bulanov, S. V.
Electromagnetic Burst Generation during Annihilation of Magnetic Field in Relativistic Laser-Plasma Interaction.
Scientific Reports. Roč. 9, č. 1 (2019), č. článku 19462. ISSN 2045-2322. E-ISSN 2045-2322
Grant CEP: GA MŠMT EF16_013/0001793; GA MŠMT EF15_003/0000449
Grant ostatní: GA MŠk(CZ) LM2010005; GA MŠk(CZ) LM2010005; GA MŠk LM2011033
Institucionální podpora: RVO:61389021
Klíčová slova: laser-plasma interaction * annihilation * electromagnetic burst
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 3.998, rok: 2019
Způsob publikování: Open access
https://www.nature.com/articles/s41598-019-55976-0

We present the results of theoretical studies of formation and evolution of the current sheet in a colliosionless plasma during magnetic reconnection in relativistic limit. Relativistic magnetic reconnection is driven by parallel laser pulses interacting with underdense plasma target. Annihilation of laser created magnetic field of opposite polarity generates strong non-stationary electric field formed in between the region with opposite polarity magnetic field accelerating charged particles within the current sheet. This laser-plasma target configuration is discussed in regard with the laboratory modeling of charged particle acceleration and gamma flash generation in astrophysics. We present the results of 3-dimensional kinetic simulations and theoretical studies on the formation and evolution of the current sheet in a collisionless plasma during magnetic field annihilation in the ultra-relativistic limit. Annihilation of oppositively directed magnetic fields driven by two laser pulses interacting with underdense plasma target is accompanied by an electromagnetic burst generation. The induced strong non-stationary longitudinal electric field accelerates charged particles within the current sheet. Properties of the laser-plasma target configuration are discussed in the context of the laboratory modeling for charged particle acceleration and gamma flash generation in astrophysics.
Trvalý link: https://hdl.handle.net/11104/0348846