Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 21: Posters 4: Novelties in Molecular Physics
MO 21.3: Poster
Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer
Collinear two-dimensional spectroscopy with shot-to-shot phase cycling — •Sebastian Roeding1, Simon Draeger1, Andreas Steinbacher1, Patrick Nuernberger1,2, and Tobias Brixner1 — 1Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg — 2Physikalische Chemie II, Ruhr-Universität Bochum, 44780 Bochum
Experimental setups to perform two-dimensional electronic spectroscopy are typically based on coherently emitted optical signals in the phase-matching direction [1]. In contrast, the detection of incoherent signals allows the investigation of molecules in different environments, e.g. by fluorescence detection in the liquid phase [2] or by photocurrent measurement in the solid state [3]. In order to discriminate the different signal contributions phase-cycling [4] needs to be applied.
We introduce a novel setup which utilizes an AOPDF pulse shaper (Dazzler, Fastlite) to generate multi-pulse sequences in a collinear beam arrangement. The AOPDF allows the variation of the interpulse delays and their relative phases with 1 kHz rate, enabling a rapid scan and shot-to-shot phase cycling. The pulse shaper output can be guided to separate experiments which permits the investigation of molecules in different environments.
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