Observation of the spin-based plasmonic effect in nanoscale structures

被引:368
|
作者
Gorodetski, Y. [1 ]
Niv, A.
Kleiner, V.
Hasman, E.
机构
[1] Technion Israel Inst Technol, Fac Mech Engn, Micro & Nanoopt Lab, IL-32000 Haifa, Israel
关键词
D O I
10.1103/PhysRevLett.101.043903
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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.
引用
收藏
页数:4
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