Mainz 2017 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 12: Posters 2: Molecular Dynamics, Clusters, and High Resolution Spectroscopy
MO 12.11: Poster
Mittwoch, 8. März 2017, 17:00–19:00, P OG1
Frequency conversion of organotetrelchalcogenide clusters — •Nils W. Rosemann1, Jens P. Eußner2, Eike Dornsiepen2, Stefanie Dehnen2, and Sangam Chatterjee1 — 1Institute of Experimental Physics I, Justus-Liebig-Universität Giessen, Heinrich-Buff Ring 16, D-35392 Giessen, Germany — 2Faculty of Chemistry and Materials Sciences Center, Philipps-Universität Marburg, Hans-Meerwein-Straße, D-35043 Marburg, Germany
Cluster molecules based on organotin complexes do feature versatile properties. One of which is low-threshold nonlinear white-light generation [1]. This process is tentatively being assigned to the driven motion of delocalised electrons in the clusters ground state potential. To review this explanation, a systematic variation of the cluster components and correlation to the nonlinear response is crucial. Here, we present to nonlinear optical response of a series of organotetrelchacogenide clusters based on the compound presented in [1]. Variation of the delocalised electron system is performed by changing the ligands, while the fundamental optical transition is changed by variation of the tetrel-moiety. Resulting in a drastic change of the nonlinear response; from white-light to second harmonic generation. [1] N. W. Rosemann et al., A Highly Efficient Directional Molecular White-Light Emitter Driven by a Continuous-Wave Laser Diode, Science 352, 1301-1304 (2016)