Photonics Research, 2017, 5 (2): 02000092, Published Online: Sep. 26, 2018  

Observation of tiny polarization rotation rate in total internal reflection via weak measurements Download: 719次

Author Affiliations
1 Laboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, China
2 Synergetic Innovation Center for Quantum Effects and Applications, College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
Abstract
In this paper, we examine the tiny polarization rotation effect in total internal reflection due to the spin–orbit interaction of light. We find that the tiny polarization rotation rate will induce a geometric phase gradient, which can be regarded as the physical origin of photonic spin Hall effect. We demonstrate that the spin-dependent splitting in position space is related to the polarization rotation in momentum space, while the spin-dependent splitting in momentum space is attributed to the polarization rotation in position space. Furthermore, we introduce a quantum weak measurement to determine the tiny polarization rotation rate. The rotation rate in momentum space is obtained with 118 nm, which manifests itself as a spatial shift, and the rotation rate in position space is achieved with 38 μrad/λ, which manifests itself as an angular shift. The investigation of the polarization rotation characteristics will provide insights into the photonic spin Hall effect and will enable us to better understand the spin–orbit interaction of light.

Chengquan Mi, Shizhen Chen, Xinxing Zhou, Kai Tian, Hailu Luo, Shuangchun Wen. Observation of tiny polarization rotation rate in total internal reflection via weak measurements[J]. Photonics Research, 2017, 5(2): 02000092.

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