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arXiv · 1804.05641

Chiroptical response of a single plasmonic nanohelix

Paweł Woźniak·Israel De Leon·Katja Höflich·Caspar Haverkamp·Silke Christiansen·Gerd Leuchs·Peter Banzer
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Abstract

We investigate the chiroptical response of a single plasmonic nanohelix interacting with a weakly-focused circularly-polarized Gaussian beam. The optical scattering at the fundamental resonance is characterized experimentally, and the chiral behavior of the nanohelix is explained based on a multipole analysis. The angularly resolved emission of the excited nanohelix is verified experimentally and it validates the theoretical results. Further, we study the first higher-order resonance and explain the formation of chiral dipoles in both cases.

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Paweł Woźniak, Israel De Leon, Katja Höflich, Caspar Haverkamp, Silke Christiansen, Gerd Leuchs, Peter Banzer. 2018-04-16. Chiroptical response of a single plasmonic nanohelix. https://doi.org/10.1364/oe.26.019275

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