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arXiv · 0807.5048

Observation of the spin-based plasmonic effect in nanoscale structures

Y. Gorodetski·A. Niv·V. Kleiner·E. Hasman
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Abstract

Observation of surface-plasmon phenomena that are dependent upon the handedness of the circularly polarized incident light (spin) is presented. The polarization-dependent near-field intensity distribution obtained in our experiment is attributed to the presence of a geometric phase arising from the interaction of light with an anisotropic and inhomogeneous nanoscale structure. A near-field vortex surface mode with a spin-dependent topological charge was obtained in a plasmonic microcavity. The remarkable phenomenon of polarization-sensitive focusing in a plasmonic structure was also demonstrated.

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Y. Gorodetski, A. Niv, V. Kleiner, E. Hasman. 2008-07-31. Observation of the spin-based plasmonic effect in nanoscale structures. https://doi.org/10.1103/physrevlett.101.043903

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