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Programmable coding photonic topological edge waveguide
Optical Engineering ( IF 1.3 ) Pub Date : 2020-11-16 , DOI: 10.1117/1.oe.59.11.117104
Yun-Tuan Fang 1 , Er-Pan Fan 1 , Xiao-Xue Li 1 , Zhang-Xin Wang 1
Affiliation  

Abstract. In order to obtain reconfigurable topological photonic waveguides, we design a two-dimensional photonic crystal with compound triangular lattice. Through rotating the dielectric rods, we change the topological phase of the lattice and achieve the topological edge states. Through the rotation of rods, we divide the two-dimensional structure space into “0” and “1” blocks made of the topologically trivial and nontrivial lattices, respectively. Through programming the codes of “0” and “1,” we can realize diverse transport pathways of light flow. The controllable light pathways will play important role in the optical circuit. The programmable design results have been demonstrated through the simulations of electromagnetic wave transport.

中文翻译:

可编程编码光子拓扑边缘波导

摘要。为了获得可重构拓扑光子波导,我们设计了一种具有复合三角晶格的二维光子晶体。通过旋转介质棒,我们改变了晶格的拓扑相位并实现了拓扑边缘状态。通过杆的旋转,我们将二维结构空间划分为分别由拓扑平凡和非平凡格组成的“0”和“1”块。通过对“0”和“1”的编码进行编程,我们可以实现光流的多样化传输路径。可控光路将在光路中发挥重要作用。可编程设计结果已通过电磁波传输的仿真得到证明。
更新日期:2020-11-16
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