Abstract
Observation of optical spin Hall effects (OSHEs) manifested by a spin-dependent momentum redirection is presented. The effect occurring solely as a result of the curvature of the coupled localized plasmonic chain is regarded as the locally isotropic OSHE, while the locally anisotropic OSHE arises from the interaction between the optical spin and the local anisotropy of the plasmonic mode rotating along the chain. A wavefront phase dislocation was observed in a circular curvature, in which the dislocation strength was enhanced by the locally anisotropic effect.
Original language | English |
---|---|
Pages (from-to) | 2038-2042 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 11 |
Issue number | 5 |
DOIs | |
State | Published - 11 May 2011 |
Externally published | Yes |
Keywords
- Plasmonics
- angular momentum
- optical spin Hall effect
- polarization