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Peer-reviewedCC BY 4.0Physical Review Research

Improved electron beam stability in laser wakefield acceleration through control of laser angular chirp and wavefront stability

  • Zhan Jin1,2
  • Yan-Jun Gu1,2
  • Shingo Sato1
  • Nobuhiko Nakanii2,3
  • Kai Huang2,3
  • Izuru Daito3
  • Toshiya Muto1
  • Yoshio Mizuta1
  • Szuba Wojciech2
  • Masaki Kando1,2,3
  • Tomonao Hosokai1,2
  1. 1The University of Osaka
  2. 2RIKEN SPring-8 Center
  3. 3Kansai Institute for Photon Science (KPSI)
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Abstract

Stable operation of laser wakefield acceleration (LWFA) is essential for future applications of compact radiation sources and advanced accelerators. In this work, we investigate stabilization of LWFA electron beams through control of laser angular chirp and wavefront stability. We show that angular chirp strongly affects beam pointing stability and identify an instability-transfer chain that links laser-pointing fluctuations to group-delay dispersion, pulse-front tilt, and electron beam pointing jitter. Stabilization of the laser transport environment, including vacuum beam transport and thermal control, reduces wavefront fluctuations and improves beam stability in energy, charge, and pointing by factors of 2–4, enabling improved control of beam quality.

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Cite

BibTeXRIS
BibTeX
@article{jin2026improved,
  title = {{Improved electron beam stability in laser wakefield acceleration through control of laser angular chirp and wavefront stability}},
  author = {Zhan Jin and Yan-Jun Gu and Shingo Sato and Nobuhiko Nakanii and Kai Huang and Izuru Daito and Toshiya Muto and Yoshio Mizuta and Szuba Wojciech and Masaki Kando and Tomonao Hosokai},
  journal = {Physical Review Research},
  year = {2026},
  month = oct,
  doi = {10.1103/rsvg-r3bg},
  url = {http://link.aps.org/doi/10.1103/rsvg-r3bg},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Improved electron beam stability in laser wakefield acceleration through control of laser angular chirp and wavefront stability
AU  - Zhan Jin
AU  - Yan-Jun Gu
AU  - Shingo Sato
AU  - Nobuhiko Nakanii
AU  - Kai Huang
AU  - Izuru Daito
AU  - Toshiya Muto
AU  - Yoshio Mizuta
AU  - Szuba Wojciech
AU  - Masaki Kando
AU  - Tomonao Hosokai
PY  - 2026
DA  - 2026/10/23
JO  - Physical Review Research
DO  - 10.1103/rsvg-r3bg
UR  - http://link.aps.org/doi/10.1103/rsvg-r3bg
AB  - Stable operation of laser wakefield acceleration (LWFA) is essential for future applications of compact radiation sources and advanced accelerators. In this work, we investigate stabilization of LWFA electron beams through control of laser angular chirp and wavefront stability. We show that angular chirp strongly affects beam pointing stability and identify an instability-transfer chain that links laser-pointing fluctuations to group-delay dispersion, pulse-front tilt, and electron beam pointing jitter. Stabilization of the laser transport environment, including vacuum beam transport and thermal control, reduces wavefront fluctuations and improves beam stability in energy, charge, and pointing by factors of 2–4, enabling improved control of beam quality.
SN  - 2643-1564
ER  -