光在金属反射中的自旋霍尔效应。

Spin Hall effect of light in metallic reflection.

机构信息

Huygens Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.

出版信息

Opt Lett. 2011 Aug 15;36(16):3200-2. doi: 10.1364/OL.36.003200.

DOI:10.1364/OL.36.003200

Abstract

We report the first measurement of the spin Hall effect of light (SHEL) on an air-metal interface. The SHEL is a polarization-dependent out-of-plane shift on the reflected beam. For the case of metallic reflection with a linearly polarized incident light, both the spatial and angular variants of the shift are observed and are maximum for -45°/45° polarization, but zero for pure s and p polarization. For an incoming beam with circular polarization states however, only the spatial out-of-plane shift is present.

摘要

我们首次在空气-金属界面上测量了光的自旋霍尔效应（SHEL）。SHEL 是反射光束上的一个与偏振相关的出射面位移。对于具有线偏振入射光的金属反射，我们观察到了位移的空间和角度变化，并且当偏振角为-45°/45°时位移最大，而当偏振角为纯 s 和 p 偏振时位移为零。然而，对于具有圆偏振态的入射光束，仅存在空间出射面位移。