Magneto‐Optical Modulation of Photonic Spin Hall Effect of Graphene in Terahertz Region,Advanced Optical Materials

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Magneto‐Optical Modulation of Photonic Spin Hall Effect of Graphene in Terahertz Region
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-02-13 , DOI: 10.1002/adom.201701212
Tingting Tang ₁ , Jie Li ₁ , Li Luo ₁ , Ping Sun ₁ , Jianquan Yao _{1,

2}

Affiliation

Magneto‐optical (MO) modulation of the photonic spin Hall effect (PSHE) of transmitted light in graphene–substrate system in terahertz region is proposed. The expressions for PSHE shifts of left‐handed circularly polarized (LHCP) and right‐handed circularly polarized (RHCP) components are derived based on angular spectrum analysis. PSHE shifts and their physical mechanisms are discussed in detail in the presence of different relaxation time and Fermi energy of graphene based on simulation results. The potential applications of MO‐modulated PSHE in multichannel switch and barcode encryption are also proposed and discussed. The MO‐modulated PSHE in graphene–substrate system provides a new mechanism to realize photonic devices in the terahertz region.

中文翻译：

太赫兹地区石墨烯的光子自旋霍尔效应的磁光调制

提出了太赫兹区石墨烯-基底系统中透射光的光子自旋霍尔效应（PSHE）的磁光（MO）调制。基于角谱分析，推导了左旋圆极化（LHCP）和右旋圆极化（RHCP）分量的PSHE位移表达式。基于模拟结果，在不同弛豫时间和石墨烯费米能量存在的情况下，对PSHE位移及其物理机理进行了详细讨论。还提出并讨论了MO调制PSHE在多通道开关和条形码加密中的潜在应用。石墨烯-基底系统中的MO调制PSHE提供了一种在太赫兹区域实现光子器件的新机制。

更新日期：2018-02-13

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