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arXiv Open Access 2025

Energy Bunching from Sub-Cycle Ionization Injection in Laser Wakefield Acceleration

A. Angella E. Löfquist C. Gustafsson V. Poulain F. D'Souza +5 lainnya
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Abstrak

We report the first experimental observation of carrier-envelope phase-driven energy bunching in laser wakefield acceleration. Using a few-cycle (~9 fs), multi-terawatt laser pulse and ionization injection in a helium-nitrogen gas mixture, we observe electron spectra composed of multiple quasi-monoenergetic peaks with regular narrow energy spacing. This comb structure arises from intermittent injection from successive half-cycles of the laser field, enabled by the evolving carrier-envelope phase during propagation in the plasma. These findings establish sub-cycle ionization injection as a potential route to attosecond control in plasma acceleration, enabling injection and beam structuring synchronized to the optical waveform on sub-femtosecond timescales.

Topik & Kata Kunci

physics.plasm-ph physics.acc-ph

Penulis (10)

A

A. Angella

E

E. Löfquist

C

C. Gustafsson

V

V. Poulain

F

F. D'Souza

C

C. Guo

A

A. Persson

P

P. Eng-Johnsson

C

C. -G. Wahlström

O

O. Lundh

Format Sitasi

APA MLA BibTeX
Angella, A., Löfquist, E., Gustafsson, C., Poulain, V., D'Souza, F., Guo, C. et al. (2025). Energy Bunching from Sub-Cycle Ionization Injection in Laser Wakefield Acceleration. https://arxiv.org/abs/2508.10829

Akses Cepat

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Informasi Jurnal
Tahun Terbit
2025
Bahasa
en
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arXiv
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Open Access ✓