Berlin 2018 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 13: Organic Electronics and Photovoltaics - Hybrid and Organic Layer Systems
CPP 13.6: Vortrag
Montag, 12. März 2018, 16:15–16:30, C 243
Exciting Strong Fano Resonances by Stacking Plasmonic Nanostructures — •Ye Yu1, Ziwei Zhou2, Tobias A. F. König1,3, and Andreas Fery1,3,4 — 1Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany — 2State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, China — 3Cluster of Excellence Centre for Advancing Electronics Dresden (cfaed), Technische Universitat Dresden, 01062 Dresden, Germany — 4Department of Physical Chemistry of Polymeric Materials, Technische Universitat Dresden, Hohe Str. 6, 01069 Dresden, Germany
Small gaps at nanometer-scale enabled noble metals to be perfect research of interest in the field of plasmonic sensing devices, optical antennas, and nanolasing systems. Due to the ultra-small gap formed in between two metallic components, the coupling effect is usually enormous and hence extreme nanoscale confinement and enhancement of the near electric field intensity. Despite the huge potential in these nanogap devices, challenges still remain in manufacturing the advanced devices with high throughput and reproducibility. Here we propose to fabricate nanogap structures with a combination of bottom-up assembly and top-down patterning strategy in the mean of lower cost and higher throughput. We were able to fabricate nanogap structures of high quality and also over large area. The optical properties proven to be of high electric field enhancement with the possibility of exciting Fano resonances due to the plasmonic hybridization between two metallic parts forming the nanogaps.