First Electron Acceleration in a Tunable-Velocity Laser Wakefield
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909948869345280 |
|---|---|
| author | Liberman, Aaron Golovanov, Anton Smartsev, Slava Talposi, Anda-Maria Tata, Sheroy Malka, Victor |
| author_facet | Liberman, Aaron Golovanov, Anton Smartsev, Slava Talposi, Anda-Maria Tata, Sheroy Malka, Victor |
| contents | We present the first experimental confirmation that a laser-wakefield accelerator produced by a flying focus pulse is able to maintain the coherent structures necessary to accelerate electrons to relativistic energies. Through a combination of spatio-temporal near-field shaping of the beam and focusing with an axiparabola - a long-focal-depth mirror that produces a quasi-Bessel beam - the propagation velocity of the wakefield is tuned to control the maximum electron energy achievable. The experimental data are supported by advanced optical and particle-in-cell simulations and are aligned with a simplified analytical model. Together, the results significantly strengthen the case for the flying-focus wakefield as a strategy for mitigating dephasing in laser-wakefield acceleration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_21098 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | First Electron Acceleration in a Tunable-Velocity Laser Wakefield Liberman, Aaron Golovanov, Anton Smartsev, Slava Talposi, Anda-Maria Tata, Sheroy Malka, Victor Accelerator Physics Optics Plasma Physics We present the first experimental confirmation that a laser-wakefield accelerator produced by a flying focus pulse is able to maintain the coherent structures necessary to accelerate electrons to relativistic energies. Through a combination of spatio-temporal near-field shaping of the beam and focusing with an axiparabola - a long-focal-depth mirror that produces a quasi-Bessel beam - the propagation velocity of the wakefield is tuned to control the maximum electron energy achievable. The experimental data are supported by advanced optical and particle-in-cell simulations and are aligned with a simplified analytical model. Together, the results significantly strengthen the case for the flying-focus wakefield as a strategy for mitigating dephasing in laser-wakefield acceleration. |
| title | First Electron Acceleration in a Tunable-Velocity Laser Wakefield |
| topic | Accelerator Physics Optics Plasma Physics |
| url | https://arxiv.org/abs/2509.21098 |