Mainz 2017 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 12: Clusters I (with MO)
A 12.6: Vortrag
Dienstag, 7. März 2017, 12:15–12:30, N 6
Highly nonlinear optical response of organotin cluster molecules — •Nils W. Rosemann1,3, Jens P. Eußner2, Andreas Beyer3, Stephan W. Koch3, Kerstin Volz3, 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 — 3Faculty of Physics and Materials Science Center, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany
Organotin-based cluster molecules exhibit a large variety of physical properties. These depend on the clusters chemical composition as well as the spatial arrangement of the constituents. Variation of these two parameters usually results in highly complex electronic landscapes. Consequently, such cluster molecules exhibit a very specific linear response and ultimately nonlinear optical properties.
Here, we present the extreme nonlinear optical response of a cluster molecule composed of a SnS cluster-core decorated with styryl-ligands. The ligands, on the one hand, prevent crystallization and provide delocalized electrons that are responsible for the nonlinear response on the other hand. These peculiarities result in low-threshold white-light generation. The latter is simulated numerically using an anharmonic oscillator model and experimental parameters only.