Petahertz-Felder Rekonstruktion zur Untersuchung der ultraschnellen elektronischen Dynamik / SPP1840 QUTIF (DFG SA 3470/2-1)

The light-matter interaction is governed by the electronic structure and properties of the medium and by the characteristics of the electromagnetic field. In a general way, a light pulse exerts a force on the electrons residing in the material determining different phenomena such as polarization in a dielectric (due to linear and nonlinear non-resonant responses of the bound electrons), screening in a metal (due to the high mobility of free electrons), and absorption (or emission) of energy (due to the presence of transitions resonant with the pulse photon energy). The properties of the electromagnetic field can be modified by its interaction with the system, and we can gain information on the variations in the electronic structure and dynamics that are initiated by the external pulse, by characterizing the field before and after the interaction with the medium. The main objective of this project it to reconstruct the complete electric field of few-cycle pulses (tunable from the ultraviolet to the infrared spectral region) after their interaction with a system, to gain insight in the electronic dynamics initiated by a synchronized pump pulse. The reconstruction of the complete electric field of the probe will require the implementation of complex attosecond techniques for sampling in time visible and near infrared electric fields.

Ansprechpartner: Sansone G
Tel: 0761 2035738
Email: giuseppe.sansone@physik.uni-freiburg.de

Projektbeginn: 01.11.2018
Projektende: 31.10.2022

Sansone G

Albert-Ludwigs-Universität Freiburg

• Maroju P

Prof. Dr. Gerhard Paulus (University of Jena) Prof. Dr. Thomas Fennel (University of Freiburg) Dr. Robert Moshammer (Max Planck Institut for Nuclear Physics) Dr. Kevin Prince (Elettra Trieste/Italy) Prof. Dr. Kiyoshi Ueda (Tohoku University/Japan) Prof. Dr. Jens Biegert (ICFO Barcellona/Spain)

• Deutsche Forschungsgemeinschaft, DFG