Manipulation and Steering of Hyperbolic Surface Polaritons in Hexagonal Boron Nitride,Advanced Materials

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Manipulation and Steering of Hyperbolic Surface Polaritons in Hexagonal Boron Nitride
Advanced Materials ( IF 27.4 ) Pub Date : 2018-03-13 , DOI: 10.1002/adma.201706358
Siyuan Dai _{1,

2} , Mykhailo Tymchenko ₂ , Yafang Yang ₃ , Qiong Ma ₃ , Marta Pita-Vidal ₃ , Kenji Watanabe ₄ , Takashi Taniguchi ₄ , Pablo Jarillo-Herrero ₃ , Michael M. Fogler ₁ , Andrea Alù ₂ , Dimitri N. Basov _{1,

5}

Affiliation

Hexagonal boron nitride (hBN) is a natural hyperbolic material that supports both volume‐confined hyperbolic polaritons and sidewall‐confined hyperbolic surface polaritons (HSPs). In this work, efficient excitation, control, and steering of HSPs are demonstrated in hBN through engineering the geometry and orientation of hBN sidewalls. By combining infrared nanoimaging and numerical simulations, the reflection, transmission, and scattering of HSPs are investigated at the hBN corners with various apex angles. It is also shown that the sidewall‐confined nature of HSPs enables a high degree of control over their propagation by designing the geometry of hBN nanostructures.

中文翻译：

六方氮化硼中双曲表面极化子的操纵与操纵

六方氮化硼（hBN）是一种天然的双曲线材料，既支持体积限制的双曲线极化子，也支持侧壁限制的双曲线表面极化子（HSP）。在这项工作中，通过设计hBN侧壁的几何形状和方向，在hBN中展示了HSP的有效激励，控制和操纵。通过结合红外纳米成像和数值模拟，研究了在具有各种顶角的hBN角处HSP的反射，透射和散射。研究还表明，通过设计hBN纳米结构的几何形状，HSP的侧壁限制性质可以对其传播进行高度控制。

更新日期：2018-03-13

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