We theoretically design and experimentally demonstrate an invisibility concentrator, consisting of several truncated cylinders, for water waves based on a scattering cancellation method. The invisibility concentrator works by controlling the scattered waves from the target device. Our simulated and experimental results verify the concentration of waves and show the effective invisibility of the designed concentrator. This approach provides the possibility of simultaneously realizing wave concentration and an invisibility cloak, which has potential applications in energy harvesting.

中文翻译：

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水波隐形浓缩器

我们在理论上设计并通过实验证明了一种基于散射消除法的水波隐形浓缩器，该浓缩器由几个截短的圆柱体组成。隐形集中器通过控制来自目标设备的散射波来工作。我们的模拟和实验结果验证了波的集中，并显示了设计集中器的有效隐身性。这种方法提供了同时实现波集中和隐形斗篷的可能性，这在能量收集中具有潜在的应用。