2008/07/25 by Yuri Gorodetski, Y. Gorodetski, Avi Niv +5 · 4 citations
Engineering · Materials Science · Physics and Astronomy · #Metamaterials and Metasurfaces Applications #Orbital Angular Momentum in Optics #Plasmonic and Surface Plasmon Research #physics.optics
paper · pdf · doi:10.1103/physrevlett.101.043903
published as Y. Gorodetski, A. Niv, V. Kleiner and E. Hasman, Phys. Rev. Lett., 101, 043903 (2008) · 17 pages, 4 figures
openalex publication_date 2008/07/25 · arxiv created 2008/07/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Observation of surface-plasmon phenomena that are dependent upon the handedness of the circularly polarized incident light (spin) is presented. The polarization-dependent near-field intensity distribution obtained in our experiment is attributed to the presence of a geometric phase arising from the interaction of light with an anisotropic and inhomogeneous nanoscale structure. A near-field vortex surface mode with a spin-dependent topological charge was obtained in a plasmonic microcavity. The remarkable phenomenon of polarization-sensitive focusing in a plasmonic structure was also demonstrated.