基于赝自旋锁定波导和拓扑彩虹俘获的可调声能聚集
Tunable acoustic energy concentrations based on pseudo-spin locking waveguides and topological rainbow trappings
AI总结：
本文提出耦合可调赝自旋锁定波导与拓扑彩虹俘获的声聚能器，证明其缺陷鲁棒、单向传输且可便捷实现高声能聚集。
摘要：
在本工作中，基于赝自旋锁定波导和拓扑彩虹俘获实现了可调声能聚集。首先，提出了一种可调赝自旋锁定，并验证了宽频声能传输和自旋锁定单向传输。结果表明，与传统拓扑边缘态波导相比，基于赝自旋锁定波导的声波传输对结构缺陷具有更强的鲁棒性。此外，通过调节管内液体分布实现了拓扑彩虹俘获。在此基础上，研究了赝自旋锁定波导与拓扑彩虹俘获之间的耦合。结果表明，利用基于赝自旋锁定波导和拓扑彩虹俘获的耦合聚能器，可以方便地获得高声能聚集。研究结果提供了一种聚集声波能量的新方法，这在声传感和微流控应用领域至关重要。相应的实验验证将在不久的将来给出。
英文摘要：
In this work, tunable acoustic energy concentrations are realized based on pseudo-spin locking waveguides and topological rainbow trappings. Firstly, a tunable pseudo-spin locking is proposed, and the broad acoustic energy transport and spin-locked one-way transport are verified. The results show that acoustic wave transports based on pseudo-spin locking waveguides are more robust to structure defects than conventional topological edge-state waveguides. Besides, topological rainbow trappings are realized by adjusting the distribution of liquid in tubes. Based on those, we investigate the coupling of the pseudo-spin locking waveguides and the topological rainbow trappings. The results show that high acoustic energy concentrations can be obtained conveniently by using the coupling energy concentrator based on the pseudo-spin locking waveguides and the topological rainbow trappings. The results present a novel method to concentrate acoustic wave energy, which is vital in the application field of acoustic sensings and microfludics. The according experimental verifications will be presented in the near future.
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