Mainz 2017 – scientific programme

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A: Fachverband Atomphysik

A 26: Poster Session II

A 26.27: Poster

Wednesday, March 8, 2017, 17:00–19:00, P OG1

Dynamic interference in atomic hydrogen — •Mehrdad Baghery, Ulf Saalmann, and Jan-Michael Rost — MPIPKS, Dresden, Germany

In the double-slit experiment two incoming wavepackets interfere due to their spatially varying relative phase. A similar phenomenon occurs if the relative phase varies with energy.

The goal is to ionise the electron wavepacket into identical continuum states at two different times. This can be done in multiple ways, 1. using two consecutive laser pulses of moderate intensity, 2. using one ultra strong laser pulse well into the stabilisation regime, 3. using one laser pulse below the stabilisation threshold but strong enough to induce a noticeable Stark shift.

This poster focuses mainly on the third alternative, which proves much more involved than perceived at first glance. In contrast to many previously published results, we show that this is only possible at frequencies in the x-ray regime.