Measurement of Giant Spin Splitting of Reflected Gaussian Beams

IEEE Photonics Journal

Wentao Qiu¹  Liheng Chen²  Jianli Dong²  Linqing Zhuo²  Huihui Lu²  Zhe Chen²  Jianhui Yu²  Heyuan Guan³  Zhishen Zhen³  Wenguo Zhu³ 

[1] Department of Optoelectronic Engineering, Jinan University, Guangzhou, China;Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Jinan University, Guangzhou, China;Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Educational Institutes, Jinan University, Guangzhou, China;

关键词: Beam splitters;    polarization-selective devices;    polarization;   

DOI  :  10.1109/JPHOT.2018.2791950

来源: DOAJ

【 摘 要 】

We investigate theoretically and experimentally the beam shifts of a Gaussian beam reflected by an air-glass interface at Brewster incidence. For a linearly polarized incident beam, the reflected beam will undergo a spatial spin splitting within the plane of incidence. This spin splitting is up to 83 μm when the incident beam waist is 90 μm. Additionally, the reflected beam will be deflected along the direction perpendicular to the incident plane, i.e., undergo an angular shift. The maximum angular shift has been theoretically predicted and experimentally confirmed. Both the spatial spin splitting and angular shift can be controlled by the incident polarization state. These controllable giant beam shifts have potential applications in the design of spin-photonic devices and the optical sensing.

【 授权许可】

Unknown