| Issue |
Europhys. Lett.
Volume 55, Number 4, August 2001
|
|
|---|---|---|
| Page(s) | 492 - 498 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2001-00442-2 | |
| Published online | 01 December 2003 | |
Effect of high-order field corrections in electron scattering by intense laser beams in vacuum
1
Institut für Theoretische Physik der Justus-Liebig-Universität -
Giessen, Germany
2
Institute of Modern Physics, Fudan University - Shanghai
200433, PRC
Corresponding author: Jia-Xiang.Wang@theo.physik.uni-giessen.de
Received:
23
March
2000
Accepted:
31
May
2001
By considering the influence of high-order field corrections
upon the electron-intense laser interactions in vacuum, we have demonstrated
that great care should be taken of the electromagnetic fields when dealing
with the nonlinear relativistic Lorentz equation for the electron motion.
Moreover, the precision of different field descriptions corresponding to
first-order corrections and paraxial approximation is investigated with
examples of electron trajectories. It has been found that the paraxial field
equations are accurate enough to describe the electron motion when the width
of the laser beam described by symmetric fields meets 
.
In the case of asymmetric fields, the paraxial approximation
is not appropriate to be used. This research is of great interest for the
choice of electromagnetic fields in the study of laser acceleration of
electrons.
PACS: 42.50.Vk – Mechanical effects of light on atoms, molecules, electrons, and ions / 41.75.Jv – Laser-driven acceleration / 41.20.-q – Applied classical electromagnetism
© EDP Sciences, 2001
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