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Dresden 2011 – scientific programme

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O: Fachverband Oberflächenphysik

O 36: Poster Session II (Metals; Nanostructures at surfaces; Surface or interface magnetism; Spin-Orbit Interaction at Surfaces; Electron and spin dynamics; Surface dynamics; Methods; Theory and computation of electronic structure)

O 36.67: Poster

Tuesday, March 15, 2011, 18:30–22:00, P4

Investigation of a Single Chiral Nano-Structure — •Paweł Woźniak1,2, Peter Banzer1,2, Katja Höflich3,4, Silke Christiansen1,3, and Gerd Leuchs1,21Max Planck Institute for the Science of Light, Günther-Scharowsky-Str. 1, D-91058 Erlangen, Germany — 2Institute of Optics, Information and Photonics, University Erlangen-Nuremberg, Staudtstr. 7/B2, D-91052 Erlangen, Germany — 3Institute of Photonic Technology, Albert-Einstein-Str. 9, D-07745 Jena, Germany — 4Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany

It was shown just recently that polarization tailored light beams can be used as a versatile tool for investigating the resonance behavior and the optical properties of single nano-structures in detail [1]. We now apply this technique to investigate the properties of single three-dimensional chiral nano-particles namely nanoscopic spirals experimentally. The use of polarization tailored light beams allows for the realization of different coupling scenarios. Due to their chirality the single nano-spirals show for instance different response to left- and right-handed circularly polarized light. Experimental results for different excitation schemes and structure designs are presented.

[1] Peter Banzer, Ulf Peschel, Susanne Quabis, and Gerd Leuchs, "On the experimental investigation of the electric and magnetic response of a single nano-structure," Optics Express 18, 10905-10923 (2010)

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