Hannover 2020 – scientific programme

The DPG Spring Meeting in Hannover had to be cancelled! Read more ...

Parts | Days | Selection | Search | Updates | Downloads | Help

A: Fachverband Atomphysik

A 9: Poster Session - Atomic Physics I

A 9.17: Poster

Monday, March 9, 2020, 16:00–18:00, Empore Lichthof

Controlling non-adiabatic ionization with ultra-short pulses — •Sajjad Azizi, Ulf Saalmann, and Jan-Michael Rost — Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38, 01187 Dresden, Germany

Non-adiabatic ionization, a new channel in the photo-ionization with high-frequency lasers, occurs for strong and short pulses due to large gradients of the *pulse envelope*. This unusual dependence on the envelope derivative can be explored by manipulating the time profile of the pulse envelope. It is shown that the non-adiabatic ionization yield can be enhanced with particular shaped pulses in comparison to the yield of the corresponding Fourier-limited pulse (FLP). This is surprising since the FLP is the strongest and shortest pulses for a given spectral representation.