Polarity reversal of wakefields driven by ultrashort pulse laser
| Autor: | James K. Koga, C. M. Lazzarini, Georg Korn, G. Grittani, Ondrej Klimo, Petr Valenta, Sergei V. Bulanov, A. Nečas, T. Zh. Esirkepov |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Polarity reversal Polarity (physics) Physics::Optics Plasma Electron Laser 01 natural sciences 010305 fluids & plasmas law.invention Pulse (physics) Acceleration Physics::Plasma Physics law 0103 physical sciences Physics::Accelerator Physics Physics::Atomic Physics Atomic physics 010306 general physics Ultrashort pulse laser |
| Zdroj: | Physical Review E. 102 |
| ISSN: | 2470-0053 2470-0045 |
| DOI: | 10.1103/physreve.102.053216 |
| Popis: | 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: | OpenAIRE |
| Externí odkaz: |
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