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Mainz 2017 – scientific programme

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MO: Fachverband Molekülphysik

MO 17: Experimental Techniques

MO 17.6: Talk

Friday, March 10, 2017, 12:30–12:45, N 6

Collinear rapid-scan two-dimensional spectroscopy via fluorescence detection with shot-to-shot phase cycling — •Simon Draeger, Sebastian Roeding, Jakub Dostál, and Tobias Brixner — Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg

We present pulse-shaper-assisted coherent two-dimensional (2D) electronic spectroscopy in liquids using fluorescence detection. A customized pulse shaper facilitates shot-to-shot modulation at 1 kHz and is employed for rapid scanning over all time delays. Phase cycling is used to extract the coherent information from the incoherent fluorescence signal. This enables us to obtain a full 2D spectrum with different nonlinear contributions in approximately 6 s measurement time (plus further averaging if needed). The method is applicable to various chemical systems. We employ cresyl violet in ethanol as a benchmark system.

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