Optical Spin Hall Effects in Plasmonic Chains

被引：289

作者：

Shitrit, Nir

Bretner, Itay

Gorodetski, Yuri

Kleiner, Vladimir

Hasman, Erez ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Micro & Nanoopt Lab, Fac Mech Engn, IL-32000 Haifa, Israel

来源：

NANO LETTERS | 2011年 / 11卷 / 05期

关键词：

Plasmonics; optical spin Hall effect; angular momentum; polarization; ANGULAR-MOMENTUM; LIGHT; BEAMS;

D O I：

10.1021/nl2004835

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

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收藏

页码：2038 / 2042

页数：5

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