光自旋霍尔效应及面内光自旋分离  

The spin Hall effect of light and in-plane spin separation of light

作　　者：秦毅[1] 李焱[1] 肖云峰[1] 杨宏[1] 龚旗煌[1] 

机构地区：[1]北京大学物理学院、人工微结构和介观物理国家重点实验室,北京100871

出　　处：《物理》2012年第6期374-381,共8页Physics

基　　金：国家自然科学基金(批准号:11074013;11023003)资助项目

摘　　要：当宽度有限的实际光束反射和折射时,左旋光和右旋光成分会发生垂直于入射面的空间分离,这一新奇的光自旋霍尔效应近来引起了人们的广泛关注.文章介绍了光自旋霍尔效应的研究进展,特别关注了纳米量级分离的测量方面进展.作者还发现在入射面内也会出现光自旋分离现象,并对这一新现象进行了理论分析和实验研究,实验测量数据和理论计算结果非常符合.When a spatially limited light beam is reflected and refracted at an interface, its two spin components or the left- and right-circularly polarized beams acquire opposite transverse displacements perpendicular to the plane of incidence. Recently, this novel spin Hall effect of light has attracted much attention. We review the research in this field, focusing especially on the measurement of the separation on the nanometer scale. We have also observed the spin separation of light in the plane of incidence when a line- arly polarized beam is reflected and refracted at a planar dielectric interface. The experimental results are in excellent agreement with the theoretical analysis.

关 键 词：反射 折射 光自旋霍尔效应 面内光自旋分离 

分 类 号：O469[理学—凝聚态物理] O431[理学—电子物理学]