Chiroptical response of a single plasmonic nanohelix
arXiv:1804.05641 · doi:10.1364/OE.26.019275
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.
arXiv comment15 pages, 11 figues
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Cited by in corpus (10)
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- Lattice-plasmon induced asymmetric transmission in two-dimensional chiral arrays
- Role of Geometric Shape in Chiral Optics
- Chiral and directional optical emission from a dipole source coupled to a helical plasmonic antenna
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