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arXiv 1303.6974physics.opticsphysics.class-ph
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光的几何自旋霍尔效应的观测

Observation of the geometric spin Hall effect of light

Jan Korger, Andrea Aiello, Vanessa Chille, Peter Banzer, Christoffer Wittmann, Norbert Lindlein, Christoph Marquardt, Gerd Leuchs

摘要:

光的自旋霍尔效应(SHEL)是固态系统中载流子发生的自旋霍尔效应的光子模拟。这种有趣现象的典型例子发生在光束在空气-玻璃界面折射时,或者当它投射到倾斜平面上时,后者的效应被称为几何SHEL。它相当于垂直于入射平面的偏振相关位移。在这里,我们实验证明了几何SHEL的光束通过斜偏振器传输。我们发现透射光束的空间光强分布依赖于入射光的偏振态,其质心位置发生了超过一个波长的位移。这种新的现象实际上是独立于偏振器的材料特性,因此,揭示了自旋轨道耦合的普遍特征。

英文摘要:

The spin Hall effect of light (SHEL) is the photonic analogue of spin Hall effects occurring for charge carriers in solid-state systems. Typical examples of this intriguing phenomenon occur when a light beam refracts at an air-glass interface, or when it is projected onto an oblique plane, the latter effect being known as geometric SHEL. It amounts to a polarization-dependent displacement perpendicular to the plane of incidence. Here, we experimentally demonstrate the geometric SHEL for a light beam transmitted across an oblique polarizer. We find that the spatial intensity distribution of the transmitted beam depends on the incident state of polarization and its centroid undergoes a positional displacement exceeding one wavelength. This novel phenomenon is virtually independent from the material properties of the polarizer and, thus, reveals universal features of spin-orbit coupling.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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