基于谷保护拓扑声子晶体的光子路径编码

IF 1.1 4区物理与天体物理 Q4 NANOSCIENCE & NANOTECHNOLOGY

Journal of Nanophotonics Pub Date : 2022-07-01 DOI:10.1117/1.JNP.16.036009

Yun-tuan Fang, Jia-Chen Liu

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引用次数: 1

摘要

摘要为了实现柔性和可重构的拓扑边缘态波导，我们构造了一种带有液晶填充棒的谷光子晶体（VPC）。一个单元中两个不等棒的介电常数是通过外部电压确定的，这导致了具有不同谷拓扑相位的VPC。外部电压由控制面板上的代码“0”和“1”控制。通过编程实现了拓扑边状态的任意路径。通过场传播模拟验证了结果。

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Coding photonic paths based on valley-protected topological phonic crystal

Abstract To achieve a flexible and reconfigurable topological edge state waveguide, we construct a valley photonic crystal (VPC) with liquid crystal filled rods. The permittivity of the two inequivalent rods in a unit is determined through the external voltage, which leads to a VPC with different valley topological phases. The external voltage is controlled by the codes of “0” and “1” on a control panel. Through programming the codes, arbitrary paths of topological edge states are achieved. The results were demonstrated by field propagation simulations.

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来源期刊

Journal of Nanophotonics 工程技术-光学

CiteScore

2.60

自引率

6.70%

发文量

审稿时长

3 months

期刊介绍： The Journal of Nanophotonics publishes peer-reviewed papers focusing on the fabrication and application of nanostructures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes.