Abstract
We present a method for controlling the spatial properties of a high-order harmonic beam on a subcycle time scale. By adding a second-harmonic field to the driving laser field, we modify the spatiotemporal structure of the harmonic beam and manipulate it with attosecond resolution. Such a manipulation maps the subcycle dynamics of a recolliding electron to the spatial domain.
- Received 27 August 2008
DOI:https://doi.org/10.1103/PhysRevA.80.011806
©2009 American Physical Society