Abstract
We demonstrate that high-order harmonics generated by an atom in intense laser field form trains of ultrashort pulses corresponding to different trajectories of electrons that tunnel out of the atom and recombine. Propagation in an atomic jet allows us to select one of these trajectories, leading to a train of pulses of extremely short duration.
- Received 8 March 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.1234
©1996 American Physical Society
