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Mainz 2017 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 16: Posters 3: Experimental Techniques and Theoretical Approaches

MO 16.2: Poster

Donnerstag, 9. März 2017, 17:00–19:00, P OG1

Two-dimensional Electronic Spectroscopy of Controlled Isolated Systems — •Ulrich Bangert, Lukas Bruder, Marcel Binz, Daniel Uhl, Katharina Schneider, Andreas Wituschek, and Frank Stienkemeier — Institute of Physics, University of Freiburg, Germany

Two-dimensional electronic spectroscopy (2DES) is a powerful tool to study coherences and correlations on ultrafast time scales. Until now, 2DES has been limited almost exclusively to condensed phase studies. Our aim is to apply 2DES to controlled isolated systems by using doped helium nanodroplet beams. Helium nanodroplets provide the dopant with a cold environment and minimal perturbation, which are ideal conditions to study the behavior of an individual system in a well-controlled environment.

However, the target density in doped helium droplet beams is several orders of magnitudes lower than in bulk condensed phase samples. We adapt a phase modulation technique [1] to overcome this issue. Using this, we currently implement a 2DES setup combined with a doped helium droplet beam. This setup will open exciting new possibilities for future 2DES studies.

[1] P. F. Tekavec, G. A. Lott and A. H. Marcus, J. Chem. Phys. 127, 214307 (2007)

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