Spin Hall Effect Enhancement of Transmitted Light Through an Anisotropic Metamaterial Slab

被引：17
作者：
Tang, Tingting [1 ]
Zhang, Yanfen [1 ]
Li, Jie [1 ]
Luo, Li [1 ]
机构：
[1] Chengdu Univ Informat Technol, Informat Mat & Device Applicat Key Lab Sichuan Pr, Chengdu 610225, Sichuan, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2017年 / 9卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Spin Hall effect of light; anisotropic metamaterial; loss; dispersion; NEGATIVE REFRACTION;
D O I：
10.1109/JPHOT.2017.2722473
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We study the spin Hall effect (SHE) enhancement of transmitted light through an anisotropic metamaterial slab. Physical mechanism of large transverse shift is explained based on the coupling between spin angular momentum and orbit angular momentum. Theoretical analysis predicts large transverse shift of transmitted light can be realized by four possible combinations of real or imaginary z component of the wave vectors, which is verified by simulation results. The anisotropy of metamaterial brings greatly enhanced SHE of transmitted light but the metamaterial loss and dispersion will reduce the transverse shift significantly. A maximum transverse shift of 15.24 mu m (12 lambda) can be achieved in an anisotropic metamaterial of ZnGaO/ZnO multilayer without any amplification method.
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页数：10
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