关联无序中自旋-轨道相互作用对光传播的剪裁
Tailoring propagation of light via spin-orbit interactions in correlated disorder
摘要：
基于空间波前和偏振自由度之间的基本相互作用，光的自旋轨道相互作用（SOI）构成了纳米尺度上的光学控制的新工具。虽然在简单的几何形状中得到了很好的描述，但在无序环境中的光的SOI，在那里只有材料显微镜的部分知识，仍然在很大程度上未被探索。在这里，我们表明，在横向随机介质中，无序相关性可以利用定制的弹道光束通过SOI的各种轨迹。特别是，我们揭示了振荡自旋霍尔效应的存在，源于由于SOI的波前的相位的变形。结合弱测量，这种现象也可以通过最佳选择的无序相关性最大化。
英文摘要：
Based on the fundamental interplay between spatial wavefronts and polarization degrees of freedom, spin-orbit interactions (SOI) of light constitute a novel tool for optical control at the nanoscale. While well described in simple geometries, SOI of light in disordered environments, where only a partial knowledge of the material's microscopy is available, remain largely unexplored. Here, we show that in transversally random media, the disorder correlation can be exploited to tailor a variety of trajectories for ballistic beams via SOI. In particular, we unveil the existence of an oscillating spin Hall effect, stemming from the deformation of the phase of the wavefront due to SOI. In combination with a weak measurement, this phenomenon can also be maximized by an optimal choice of the disorder correlation.
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