| Issue |
EPL
Volume 82, Number 6, June 2008
|
|
|---|---|---|
| Article Number | 64001 | |
| Number of page(s) | 5 | |
| Section | Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/82/64001 | |
| Published online | 03 June 2008 | |
Optimum injection momentum for electrons in vacuum laser acceleration
1
Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan University - Shanghai, 200433, China
2
Department of Electrical and Electronic Engineering, Utsunomiya University - Utsunomiya, Japan
Corresponding author: wpx@fudan.edu.cn
Received:
22
February
2008
Accepted:
29
April
2008
Using numerical simulation, injection conditions for the electron in vacuum laser acceleration are studied. The results show that different distribution of injection momentum in the longitudinal and transversal direction will drastically influence the interaction process, and there exists a gap in the frontier area qualified for acceleration. The results for different beam widths show that the gap always exists. This gap corresponds to the valley appearing in the profile of the ejection-energy/injection-angle curve (J. Phys. B, 39 (2006) 1353). Associated with the initial conditions of the interaction system, the characteristic of the ejection-energy/injection-angle curve is also analyzed.
PACS: 41.75.Jv – Laser-driven acceleration / 42.65.-k – Nonlinear optics
© EPLA, 2008
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