Topological photonic encoder based on the disclination states

IF 4.6 Q1 OPTICS Journal of Physics-Photonics Pub Date : 2024-05-12 DOI:10.1088/2515-7647/ad46aa
Guoxiang Si, Wen Zhao, Hongyu Zhang and Cuicui Lu
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Abstract

Topological disclination states are highly localized and stable by means of introducing disclination, which provide a robust platform for realizing optical information transition. A photonic encoder, as a kind of optical information transition element, can record, transmit, and protect optical information. However, there is no effective methods to realize topological photonic encoders. In this work, we propose a method to realize topological photonic encoder through topological disclination states. After the introduction of a disclination in the honeycomb structure, four types of disclination states can be generated. To demonstrate the device to carry more information, nine disclination structures with different cylindrical radii are combined, and the disclination states can be denoted by digital signals 1–4 to prepare a topological photonic encoder. In addition, to improve the security of information transition, we build an encryption algorithm based on Morse code. This work provides a new idea for the construction of encoding devices and promotes the practical application of the topological disclination states.
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基于偏离态的拓扑光子编码器
拓扑离散态通过引入离散,具有高度的局部性和稳定性,为实现光信息转换提供了一个稳健的平台。光子编码器作为一种光信息转换元件,可以记录、传输和保护光信息。然而,目前还没有实现拓扑光子编码器的有效方法。在这项工作中,我们提出了一种通过拓扑分离态实现拓扑光子编码器的方法。在蜂窝状结构中引入离散后,可产生四种离散态。为了证明该装置能携带更多信息,九个不同圆柱半径的分离结构被组合在一起,分离状态可以用数字信号 1-4 表示,从而制备出拓扑光子编码器。此外,为了提高信息转换的安全性,我们还构建了一种基于摩尔斯码的加密算法。这项工作为编码设备的构建提供了一个新思路,促进了拓扑分离态的实际应用。
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来源期刊
CiteScore
10.70
自引率
0.00%
发文量
27
审稿时长
12 weeks
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