Hannover 2003 – scientific programme

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A: Atomphysik

A 21: Ultraschnelle Ph
änomene + Spektroskopie 2

A 21.3: Talk

Friday, March 28, 2003, 14:30–14:45, F128

Control of Interference in an Autler-Townes Doublet with Phase Modulated Intense Ultrashort Laser Pulses — •Andreas Präkelt, Matthias Wollenhaupt, Andreas Assion, Oksana Bazhan, Christian Horn, Dirk Liese, Christian Sarpe-Tudoran, and Thomas Baumert — Universität Kassel, Fachbereich Physik, Heinrich-Plett-Str. 40, D-34132 Kassel

In a recent experiment strong field control of the intensity and interference of the Autler-Townes (AT) components in the photoelectron spectrum of K atoms was demonstrated employing a sequence of two intense ultrashort laser pulses. In this contribution we investigate how and to which extend the AT components can be controlled by a single phase modulated intense ultrashort laser pulse. Laser pulses which optimize the high (low) energy AT components are analyzed to allow an analysis of the underlying dynamics in terms of a two level model. This system may serve as a prototype for a detailed understanding of strong field control dynamics in atomic and molecular systems.