Optimization of electron bunch quality using a chirped laser pulse in laser wakefield acceleration

In this work, we perform particle-in-cell simulations to investigate the electron bunch quality using a chirped laser pulse in a laser wakefield acceleration mechanism. Particular attention is devoted to the electron beam quality improvement using a chirped laser pulse through group delay dispersion...

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Bibliographic Details
Published inPhysical review. Accelerators and beams Vol. 24; no. 11; p. 111302
Main Authors Jain, Arohi, Gupta, Devki Nandan
Format Journal Article
LanguageEnglish
Published College Park American Physical Society 01.11.2021
Subjects
Electron beams
Free electron lasers
Group delay
Laser applications
Optimization
Radiation sources
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Summary:In this work, we perform particle-in-cell simulations to investigate the electron bunch quality using a chirped laser pulse in a laser wakefield acceleration mechanism. Particular attention is devoted to the electron beam quality improvement using a chirped laser pulse through group delay dispersion. By adjusting the value of group delay dispersion, the electron beam quality was controlled and improved in the range: charge (31–325 pC), energy (240–485 MeV), energy spread (2.1%–12.5%), and bunch duration (3.3–17 fs). The electron bunch charge highly depends on the chirping of the laser pulse. We anticipate that the ultrashort sub-GeV electron bunch generated in the laser wakefield acceleration mechanism using chirped laser pulses may be crucial in developing free-electron laser-based compact radiation sources.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.24.111302