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Observation of photonic spin Hall effect with phase singularity at dielectric metasurfaces
- Source :
- Optics express. 23(2)
- Publication Year :
- 2015
-
Abstract
- Observation of photonic spin Hall effect (SHE) near the phase singularity at dielectric metasurfaces is presented. The structured metasurface works as a space-variant Pancharatnam-Berry phase element and produces a vortex beam with phase singularity. The dynamical vortex phase is introduced to eliminate or enhance the phase singularity, thus realizing the manipulation of spin-dependent Pancharatnam-Berry phase. The spin-orbit coupling near the singularity of the Pancharatnam-Berry phase leads to the observation of the photonic SHE which manifests itself as spin-dependent splitting. The underlying mechanism is significantly different from previously reported cases. It thereby provides an alternative way to manipulate the spin states of photons.
Details
- ISSN :
- 10944087
- Volume :
- 23
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....e4d3c495c858c66d09dbb9a7ad78ecf8