Micro and Nanooptics Laboratory, Faculty of Mechanical Engineering, and Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa 32000, Israel.
Nano Lett. 2012 Mar 14;12(3):1620-3. doi: 10.1021/nl204556r. Epub 2012 Feb 24.
Observation of spin-dependent plasmonics based on the interference of topological defects in the near-field is presented. We utilize the surface plasmons' scattering dynamics from localized vortex sources to create spinoptical devices as an ensemble of isolated nanoantennas to observe a "giant" spin-dependent plasmonic vortex and a spin-dependent plasmonic focusing lens. The spin-orbit point spread function, a spiral wavefront, is introduced, where the optical spin is a degree of freedom.
本文提出了一种基于近场拓扑缺陷干涉的自旋相关等离子体研究。我们利用局域涡旋源表面等离激元的散射动力学，通过一组孤立的纳米天线来创建自旋光学器件，以观察到“巨大”的自旋相关等离子体涡旋和自旋相关等离子体聚焦透镜。引入了自旋轨道点扩散函数，即螺旋波前，其中光学自旋是一个自由度。
