Photonic spin Hall effect in PT symmetric metamaterials

doi:10.1007/s11467-019-0938-8

Front. Phys.

2019, Vol. 14

Issue (6) : 62601 https://doi.org/10.1007/s11467-019-0938-8

RESEARCH ARTICLE

Photonic spin Hall effect in PT symmetric metamaterials

Yang-Yang Fu(

), Yue Fei, Da-Xing Dong, You-Wen Liu(

)

College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

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Abstract

We proposed and demonstrated that PT symmetric metamaterials could be used to achieve enhanced spin Hall effect (SHE) of light. We find that when laser mode is excited in PT symmetric system, the enhanced SHE could be obtained in both transmitted and reflected beams. In addition, as exceptional points (EPs) of PT symmetric system can happen for both p- and s-polarizations, the enhanced SHE of reflected light can function for both horizontally and vertically polarized incident beams. Particularly, these EPs can lead to unidirectional reflectionlessness, asymmetric SHE with maximum contrast ratio of 48 is obtained by launching light beams near EPs. Our work opens up a new path to obtain enhanced transverse displacement for both reflected and transmitted light and enables more opportunities in manipulating photonic SHE.

Keywords PT symmetry exceptional points laser mode spin Hall effect

Corresponding Author(s): Yang-Yang Fu,You-Wen Liu

Issue Date: 22 November 2019

Cite this article:

Yang-Yang Fu,Yue Fei,Da-Xing Dong, et al. Photonic spin Hall effect in PT symmetric metamaterials[J]. Front. Phys. , 2019, 14(6): 62601.

URL:

https://academic.hep.com.cn/fop/EN/10.1007/s11467-019-0938-8
https://academic.hep.com.cn/fop/EN/Y2019/V14/I6/62601

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