Spin-dependent plasmonics based on interfering topological defects.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22339787.
- Also identified by DOI 10.1021/nl204556r.
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Abstract
Observation of spin-dependent plasmonics based on the interference of topological defects in the near-field is presented. We utilize the surface plasmons' scattering dynamics from localized vortex sources to create spinoptical devices as an ensemble of isolated nanoantennas to observe a "giant" spin-dependent plasmonic vortex and a spin-dependent plasmonic focusing lens. The spin-orbit point spread function, a spiral wavefront, is introduced, where the optical spin is a degree of freedom.
Medical subject headings
- Models, Chemical
- Models, Molecular
- Nanostructures
- Surface Plasmon Resonance