Observation of the spin-based plasmonic effect in nanoscale structures

被引：378

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

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 04期

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

页数：4

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