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Regensburg 2019 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 16: Organic Thin Films, Organic-Inorganic Interfaces

DS 16.4: Vortrag

Mittwoch, 3. April 2019, 10:15–10:30, H39

Thermal emission from a hybride plasmonic structure in the strong coupling regime — •Hala Memmi, Oliver Benson, Sergey Sadofev, and Sascha Kalusniak — Instiut für Physik, Humboldt Universität zu Berlin, Berlin, Germany

We report on thermal emission from an organic/inorganic plasmonic hybrid structure where a carbonyl stretching vibration is strongly coupled with a surface plasmon polariton. The structure consists of a polyvinyl-methyl-ketone layer deposited on top of a silver layer. Emission measurements in Kretschmann-Raether configuration using a calcium fluoride hemicylindrical prism as decoupling medium were conducted at 140°C and collected in transverse magnetic polarization. Two clear maxima corresponding to upper and lower polariton branch were observed in the emission spectra. They also reproduce the anti-crossing behavior in the dispersion relation as revealed from Attenuated-total-reflection measurements. The intensity of the emission maxima as a function of the varying temperature confirms the different nature of the branches.

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