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24 April 2020 Acoustic topological pumping in space-modulated materials (Conference Presentation)
Hui Chen, Guoliang Huang
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Proceedings Volume 11381, Health Monitoring of Structural and Biological Systems XIV; 1138116 (2020) https://doi.org/10.1117/12.2558970
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only
Abstract
In this work, we theoretically design and numerically realize topological pumpings in 2D and 3D spatially modulated acoustic metamaterials. By adiabatically changing the pumping parameters along the synthetic dimension, we observe topologically protected states, which are shown to be pumped from one edge to the other in 2D materials, and from edge to edge and corner to corner in 3D materials. This spatially modulated metamaterials could pave the way for acoustic topological wave trapping and manipulation and serve as a platform for the study of higher-dimensional topological effects among different physical systems.
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Hui Chen and Guoliang Huang "Acoustic topological pumping in space-modulated materials (Conference Presentation)", Proc. SPIE 11381, Health Monitoring of Structural and Biological Systems XIV, 1138116 (24 April 2020); https://doi.org/10.1117/12.2558970
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KEYWORDS
Acoustics
Modulation
Metamaterials
Gases
Mechanics
Negative refraction
Photonics
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