Dynamics of an electron driven by a focused short relativistically intense laser pulse

摘要

The motions of electrons driven by the fields of linearly and circularly polarized relativistically intense laser pulses are analyzed. The treatment is based on the numerical solution of Newton's equation with the Lorentz force. The electromagnetic radiation of an electron interacting with a laser pulse is studied. It is shown that this radiation comprises short pulses having the attosecond range durations. An electron which is at rest initially does not follow the figure-eight trajectories in the field of a linearly polarized laser pulse.