Strong field quantum path control using attosecond pulse trains.
We show that attosecond pulse trains have a natural application in the control of strong field processes. In combination with an intense infrared laser field, the pulse train can be used to microscopically select a single quantum path contribution to a process that would otherwise consist of several interfering components. We present calculations that demonstrate this by manipulating the time-frequency properties of high order harmonics at the single atom level. This quantum path selection can also be used to define a high resolution attosecond clock.
Schafer
Kenneth J
KJ
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA.
Gaarde
Mette B
MB
Heinrich
Arne
A
Biegert
Jens
J
Keller
Ursula
U