Quantum theory of attosecond XUV pulse measurement by laser dressed photoionization.
The first reported measurements of single attosecond pulses use laser dressed single-photon extreme ultraviolet (XUV) ionization of gas atoms. The determination of XUV pulse duration from the electron spectrum is based on a classical theory. Although classical models are known to give a qualitatively correct description of strong laser atom interaction, the validity must be scrutinized by a quantum-mechanical analysis. We establish a theoretical framework for the accurate temporal characterization of attosecond XUV pulses. Our analysis reveals an improved scheme that allows for direct experimental discrimination between single and multiple attosecond pulses.
Kitzler
Markus
M
Institut für Photonik, Technische Universität Wien, Gusshausstrasse 27/387, A-1040 Wien, Austria.
Milosevic
Nenad
N
Scrinzi
Armin
A
Krausz
Ferenc
F
Brabec
Thomas
T