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arXiv · 1008.0497

Magnetized spiral chains of plasmonic ellipsoids for one-way optical waveguides

Y. Hadad·Ben Z. Steinberg
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Abstract

When a linear chain of plasmonic nano-particles is subject to longitudinal magnetic field, it exhibits optical Faraday rotation. If the magnetized nano-particles are plasmonic ellipsoids arranged as a spiral chain, the interplay between the Faraday rotation and the geometrical spiral rotation (structural chirality) can strongly enhance non-reciprocity. This interplay forms a waveguide that permits one way propagation only, within four disjoint frequency bands; two bands for each direction.

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Y. Hadad, Ben Z. Steinberg. 2010-11-14. Magnetized spiral chains of plasmonic ellipsoids for one-way optical waveguides. https://doi.org/10.1103/physrevlett.105.233904

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