光的自旋-轨道相互作用  

Spin-orbit interaction of light

作　　者：许文昊 寿一畅 罗海陆 XU Wenhao;SHOU Yichang;LUO Hailu(Laboratory for Spin Photonics,School of Physics and Electronics,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学物理与微电子科学学院自旋光子学实验室,湖南长沙410082

出　　处：《量子电子学报》2022年第2期159-181,共23页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金面上项目,12174097;湖南省自然科学基金面上项目,2021JJ10008。

摘　　要：光的自旋-轨道相互作用是指光的自旋角动量和轨道角动量之间的相互作用,它存在于反射、折射、散射、衍射、聚焦等基本的光学过程中。在传统大尺度量级的经典光学中可以忽略自旋-轨道相互作用的影响,但在亚波长尺度下,自旋和轨道角动量之间会发生强耦合。对光的自旋-轨道相互作用的基本起源和重要应用进行了综述。首先,介绍了光的自旋-轨道相互作用的两个重要基本概念:光子角动量和几何相位理论。其次,分别介绍了自旋-内禀轨道角动量和自旋-外禀轨道角动量两种相互作用的基本原理。然后,重点介绍了光自旋-轨道相互作用的研究进展以及代表性应用。最后,对光自旋-轨道相互作用相关研究面临的挑战和未来的研究方向进行了展望。The spin-orbit interaction of light refers to the interaction between the spin angular momentum and the orbital angular momentum of light, which exists in basic optical processes such as reflection,refraction, scattering, diffraction, and focusing. In traditional large-scale classical optics, the influence of spin-orbit interaction can be ignored, but at sub-wavelength scales, strong coupling between spin and orbital angular momentum occurs. This article reviews the basic origins and important applications of the spin-orbit interaction of light. Firstly, two important basic concepts of photon spin-orbit interaction,photon angular momentum and geometric phase theory, are introduced. Secondly, two types of spin-orbit interactions, spin-intrinsic orbit interaction and spin-extrinsic orbital angular momentum interaction, are briefly introduced respectively. Then, the research progress and representative applications of photon spin-orbit interaction are mainly introduced. Finally, the challenges and future research directions of the research on the spin-orbit interaction of light are prospected.

关 键 词：光电子学 自旋-轨道相互作用 几何相位 光子自旋霍尔效应 量子弱测量 光学微分运算 

分 类 号：O436.3[机械工程—光学工程]