Berlin 2015 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 36: Plasmonics and Nanooptics
O 36.24: Poster
Dienstag, 17. März 2015, 18:15–21:00, Poster A
Spectroscopic ellipsometry of anisotropic metal nanostructures on patterned diblock co-polymer thin film — •Johannes F. H. Risch Risch1, Sarathlal Koyiloth Vayalil1, Gonzalo Santoro1, Shun Shun1,2, Bastian Besner3, Philipp Bremer3, Dieter Rukser3, Yuan Yao4, Ezzeldin Metwalli4, Peter Müller-Buschbaum4, Michael A. Rübhausen3, and Stephan V. Roth1 — 1DESY, Notkestr. 85, D-22607 Hamburg — 2KTH, Teknikringen 56-58, SE-100 44 Stockholm — 3UHH, INF CFEL APOG, Luruper Chaussee 149, D-22761 Hamburg — 4TUM, Physik Department LS E13, James-Franck-Str. 1, D-85748 Garching
Hybrid materials play a crucial role in modern advanced material science. Nanostructures can exhibit plasmonic resonances based on the shape, size and ordering, which can be used for example for SERS. Nanostructured gold films were fabricated by oblique angle deposition on a patterned diblock co-polymer thin film. Due to selective wetting behavior hierarchical films were created. Furthermore the gold clusters on top of the polymer film show a shape anisotropy leading to optical birefringence. Using angular resolved spectroscopic ellipsometry we investigate the optical properties of these hybrid films at selected different growth stages below and above the percolation threshold.