Tunable topological edge modes in Su–Schrieffer–Heeger arrays
Chaplain, GJ; Gliozzi, AS; Davies, B; et al.Urban, D; Descrovi, E; Bosia, F; Craster, RV
Date: 31 May 2023
Article
Journal
Applied Physics Letters
Publisher
AIP Publishing
Publisher DOI
Abstract
A potential weakness of topological waveguides is that they act on a fixed narrow band of frequencies. However, by 3D printing samples from a photo-responsive polymer, we can obtain a device whose operating frequency can be fine-tuned dynamically using laser excitation. This greatly enhances existing static tunability strategies, ...
A potential weakness of topological waveguides is that they act on a fixed narrow band of frequencies. However, by 3D printing samples from a photo-responsive polymer, we can obtain a device whose operating frequency can be fine-tuned dynamically using laser excitation. This greatly enhances existing static tunability strategies, typically based on modifying the geometry. We use a version of the classical Su–Schrieffer–Heeger model to demonstrate our approach.
Physics and Astronomy
Faculty of Environment, Science and Economy
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