Measuring spin Hall effect of light by cross-polarization intensity ratio

被引:13
|
作者
Wang, Bo [1 ,2 ]
Li, Yan [1 ,2 ]
Pan, Meng-Meng [1 ]
Ren, Jin-Li [1 ,2 ]
Xiao, Yun-Feng [1 ,2 ]
Yang, Hong [1 ]
Gong, Qihuang [1 ,2 ]
机构
[1] Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[2] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
GOOS-HANCHEN; REFLECTED LIGHT; SHIFTS;
D O I
10.1364/OL.39.003425
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We propose and realize a simple technique to measure the tiny spin Hall effect of light from the ratio of the minimum and the maximum intensities along two cross-polarization directions, without the requirement of a position-sensitive detector in the conventional weak measurement. Furthermore, the weak intensity ratio is dramatically amplified by purposely choosing the intensity along the direction close to that of the minimum instead of the maximum along the perpendicular polarization direction, which is verified by the experimental results. In principle, this method also can be modified for measurement of the high extinction ratio of a polarizer. (C) 2014 Optical Society of America
引用
收藏
页码:3425 / 3428
页数:4
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