Polarity reversal of wakefields driven by ultrashort pulse laser.

Autor: Valenta P; ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic.; Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Prague 11519, Czech Republic., Esirkepov TZ; Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, Kyoto 619-0215, Japan., Koga JK; Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, Kyoto 619-0215, Japan., Nečas A; TAE Technologies, Pauling 19631, Foothill Ranch, California 92610, USA., Grittani GM; ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic., Lazzarini CM; ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic., Klimo O; ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic.; Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Prague 11519, Czech Republic., Korn G; ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic., Bulanov SV; ELI Beamlines, Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, Prague 18221, Czech Republic.; Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Umemidai 8-1-7, Kizugawa, Kyoto 619-0215, Japan.
Jazyk: angličtina
Zdroj: Physical review. E [Phys Rev E] 2020 Nov; Vol. 102 (5-1), pp. 053216.
DOI: 10.1103/PhysRevE.102.053216
Abstrakt: Using an analytical model and computer simulation, we show that the wakefield driven by an ultrashort laser pulse in high-density plasma periodically reverses its polarity due to the carrier-envelope phase shift of the driver. The wakefield polarity reversal occurs on spatial scales shorter than the typical length considered for electron acceleration with the laser-wakefield mechanism. Consequently, the energies of accelerated electrons are significantly affected. The results obtained are important for the laser-wakefield acceleration under the conditions relevant to present-day high-repetition-rate laser systems.
Databáze: MEDLINE
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