Hunan Provincial Key Laboratory of Intelligent Information Processing and Application, College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang 421002, People's Republic of China. Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore. Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China.
Rep Prog Phys. 2017 Jun;80(6):066401. doi: 10.1088/1361-6633/aa5397. Epub 2017 Mar 30.
The spin Hall effect (SHE) of light, as an analogue of the SHE in electronic systems, is a promising candidate for investigating the SHE in semiconductor spintronics/valleytronics, high-energy physics and condensed matter physics, owing to their similar topological nature in the spin-orbit interaction. The SHE of light exhibits unique potential for exploring the physical properties of nanostructures, such as determining the optical thickness, and the material properties of metallic and magnetic thin films and even atomically thin two-dimensional materials. More importantly, it opens a possible pathway for controlling the spin states of photons and developing next-generation photonic spin Hall devices as a fundamental constituent of the emerging spinoptics. In this review, based on the viewpoint of the geometric phase gradient, we give a detailed presentation of the recent advances in the SHE of light and its applications in precision metrology and future spin-based photonics.
光的自旋霍尔效应（SHE）作为电子系统中 SHE 的类似物，由于其在自旋轨道相互作用中具有相似的拓扑性质，是研究半导体自旋电子学/谷电子学、高能物理和凝聚态物理中 SHE 的有前途的候选者。光的 SHE 在探索纳米结构的物理性质方面具有独特的潜力，例如确定光学厚度，以及金属和磁性薄膜甚至原子层状二维材料的材料性质。更重要的是，它为控制光子的自旋状态以及开发下一代基于光子的自旋霍尔器件开辟了一条可能的途径，作为新兴自旋光学的基本组成部分。在这篇综述中，我们基于几何相位梯度的观点，详细介绍了光的 SHE 及其在精密计量和未来基于自旋的光子学中的应用的最新进展。
