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Integrated topological photonics in one dimension
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DOI：10.1080/23746149.2025.2476417.png)
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Abstract
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The field of topological photonics, where the topological properties of an array of photonic structures are used to manipulate and confine light, has become very active. Part of this activity is justified by the potential impact on applications, but a significant interest on the topic comes from the relative ease for understanding fundamental topological physics, particularly through experiments, using light. One-dimensional (and quasi-one dimensional) topological systems are simple enough that they can be understood analytically, but they still present a rich behaviour. The approachable theory, combined with advances in photonic fabrication that allow for making devices that can be modelled as one-dimensional arrays showing topological behaviours, has led to devices like these becoming the go-to platform for achieving a deep understanding of topological features. This short review aims to givereaders a brief introduction to the topic, showcasing implementations based mostly on integrated on-chip-photonics.
Keywords:
Topological photonics
one-dimensional systems
Su-Schieffer-Heeger model
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13.8
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