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Erlangen 2018 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 22: Posters 3: Experimental and Theoretical Techniques and High Resolution Spectroscopy

MO 22.4: Poster

Donnerstag, 8. März 2018, 16:15–18:15, Zelt West

A magnetic bottle spectrometer for 2D electronic spectroscopy experiments in the gas phase — •Max Jakob, Lukas Bruder, Marcel Binz, Daniel Uhl, Ulrich Bangert, and Frank Stienkemeier — Physikalisches Institut, Universität Freiburg, Hermann-Herder Str. 3, 79104 Freiburg

2D electronic spectroscopy (2DES) is a powerful tool to study complex dynamics in real time. While most 2D studies have been conducted in the condensed phase, we have built an apparatus to perform 2DES experiments on molecular and cluster beams in the gas phase. As an advantage, our setup can be combined with energy-resolved photoelectron detection, which basically adds an additional dimension to the 2D spectra. For this purpose, we have constructed a magnetic bottle spectrometer, which provides high collection efficiencies for photoelectrons. Binding energies are deduced from time-of-flight efficiently processed with time-to-digital conversion and combined with lock-in detection to increase the sensitivity.

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