Stuttgart 2012 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 8: Photochemistry
MO 8.4: Vortrag
Dienstag, 13. März 2012, 11:15–11:30, V38.02
Photoswitchable ruthenium sulfoxides and their adaptability fornonlinear molecular photonics — •Sebastian Eicke, Sergej Bock, Volker Dieckmann, Kristin Springfeld, and Mirco Imlau — Department of Physics, University of Osnabrück, Germany
Ruthenium sulfoxides like [Ru(bpy)2(OSO)]+ (OSO: 2-methylsulfinylbenzoate) offer a light-induced linkage isomerization located at the SO-ligand resulting in pronounced changes of characteristic optical properties.
These photoswitchable molecules are out-standing due to an ultrafast optical response in the ps range and a pronounced photochromism in the visible spectral range as well as long lifetimes in the metastable states.
Furthermore, they can be simply tuned via ligand substitutions or different dielectric environments allowing for the adjustment of the spectral adressability, the magnitude of the absorption change and the generation/relaxation rates.
The talk gives a review on various molecule adaptabilities and presents a novel representative of the group of ruthenium sulfoxides whose optical properties have been successfully adjusted to the most common commercial laser sources.
Thus the unique spectral adressability, the high efficient and the fast light-induced conversion of this new compound allow for applications in a multiplicity of devices. We particularly discuss their potential for ultrafast optical switches for controlling light by light and next-generation realtime holographic displays.
*Financial support by the DFG (INST 190/137-1) and DAAD (50445542) is gratefully acknowledged.