Abstract
Free electrons have been accelerated in vacuum to MeV energies by a high-intensity subpicosecond laser pulse ( , 300 fs). The experimental data are in good agreement with the relativistic motion of electrons in a spatially and temporally finite electromagnetic field, both in terms of maximum energy and scattering angle.
- Received 25 October 1996
DOI:https://doi.org/10.1103/PhysRevLett.78.3314
©1997 American Physical Society