Spin-dependent plasmonics based on interfering topological defects

Nir Shitrit; Sergey Nechayev; Vladimir Kleiner; Erez Hasman

doi:10.1021/nl204556r

Spin-dependent plasmonics based on interfering topological defects

Nano Lett. 2012 Mar 14;12(3):1620-3. doi: 10.1021/nl204556r. Epub 2012 Feb 24.

Authors

Nir Shitrit¹, Sergey Nechayev, Vladimir Kleiner, Erez Hasman

Affiliation

¹ Micro and Nanooptics Laboratory, Faculty of Mechanical Engineering, and Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa 32000, Israel.

PMID: 22339787
DOI: 10.1021/nl204556r

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.

MeSH terms

Computer Simulation
Light
Macromolecular Substances / chemistry
Materials Testing
Models, Chemical*
Models, Molecular*
Nanostructures / chemistry*
Nanostructures / ultrastructure*
Particle Size
Scattering, Radiation
Spin Labels
Surface Plasmon Resonance / methods*
Surface Properties

Substances

Macromolecular Substances
Spin Labels