具有宽通道的复合光子晶格,可维持拓扑界面状态。

IF 3.2 2区 物理与天体物理 Q2 OPTICS Optics express Pub Date : 2024-07-15 DOI:10.1364/OE.526154
Anli Xiang, Zhuohang Zhang, Tao Jiang, Gaofeng Wu, Lu Han, Yangjian Cai
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引用次数: 0

摘要

在拓扑光子学领域,一个目标是寻求具有拓扑保护的特殊结构,以支持光的稳定传播。我们设计了一种拓扑结构,其特点是有一个宽通道来维持边缘或界面状态。通过分析能谱、特征态和绕组数,我们阐明了拓扑特性。此外,我们还通过计算耦合模式方程得出的强度,研究了光在我们结构中的传播特性。我们的研究结果表明,该结构能够将光限制在中心区域,从而促进大尺寸光束的稳定和稳健传播。此外,使用商业软件进行的模拟也证实了理论分析的正确性。我们的发现可能会对结构光的调制和具有宽通道能力的光子设备的开发产生重大影响。
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Composite photonic lattice with a broad channel to sustain topological interface states.

In the field of topological photonics, one goal is to seek specialized structures with topological protection that can support the stable propagation of light. We have designed a topological configuration featuring a broad channel to sustain edge or interface states. The topological properties are elucidated by analyzing the energy spectrum, eigenstates, and winding numbers. Furthermore, the propagation characteristics of light within our structure are examined through the computation of intensities derived from the coupled mode equations. Our findings reveal that the structure is capable of confining light to the central region, facilitating stable and robust propagation for large-sized beams. Additionally, simulations conducted using commercial software have substantiated the theoretical analysis. Our finding may have significant implications for the modulation of structured light and the development of photonic devices with wide channel capabilities.

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来源期刊
Optics express
Optics express 物理-光学
CiteScore
6.60
自引率
15.80%
发文量
5182
审稿时长
2.1 months
期刊介绍: Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.
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