Spin-Dependent Plasmonics Based on Interfering Topological Defects

Spin-Dependent Plasmonics Based on Interfering Topological Defects

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...

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Veröffentlicht in:Nano letters 2012-03, Vol.12 (3), p.1620-1623
Hauptverfasser: Shitrit, Nir, Nechayev, Sergey, Kleiner, Vladimir, Hasman, Erez
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)
Computer Simulation
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Defects
Devices
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronics
Exact sciences and technology
Fluid flow
Focusing
Light
Macromolecular Substances - chemistry
Materials Testing
Models, Chemical
Models, Molecular
Molecular electronics, nanoelectronics
Nanostructure
Nanostructures - chemistry
Nanostructures - ultrastructure
Particle Size
Physics
Plasmonics
Scattering, Radiation
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Spin Labels
Spirals
Surface and interface electron states
Surface Plasmon Resonance - methods
Surface Properties
Topology
Vortices
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Beschreibung
Zusammenfassung: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.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl204556r