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Dresden 2014 – scientific programme

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O: Fachverband Oberflächenphysik

O 37: Posters: Plasmonics, Electronic Structure and Spin-Orbit Interaction, Semiconductor and Insulator Surfaces, Nanostructures

O 37.23: Poster

Tuesday, April 1, 2014, 18:30–22:00, P2

Impact of rotational symmetry on the nonlinear optical response of gold nanoantennas — •Franziska Zeuner1, Shumei Chen2, Guixin Li3, Shuang Zhang2, and Thomas Zentgraf11Department of Physics, University of Paderborn — 2School of Physics & Astronomy, University of Birmingham, UK — 3Department of Physics, Hong Kong Baptist University

The strength of a nonlinear optical response of natural materials is highly sensitive to their crystallographical symmetry. Because of the high interest in metamaterials and their potential in photonics, we want to investigate the impact of rotational symmetry on the nonlinear optical signal strength of plasmonic structures. By fabricating gold nanoantennas with four different rotational symmetries but the same plasmon resonance frequency, we are able to compare the symmerty induced change in the nonlinear optical response.

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