Institute of Electromagnetics and Acoustics and Department of Electronic Science, Xiamen University, Xiamen 361005, China.
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China.
Phys Rev Lett. 2018 Sep 7;121(10):104501. doi: 10.1103/PhysRevLett.121.104501.
By introducing concepts from transformation optics to the manipulation of water waves, we design and experimentally demonstrate two annular devices for concentrating waves, which employ gradient depth profiles based on Fabry-Pérot resonances. Our measurements and numerical simulations confirm the concentrating effect of the annular devices and show that they are effectively invisible to the water waves. We show that transformation optics is thus an effective framework for designing devices to improve the efficiency of wave energy collection, and we expect potential applications in coastline ocean engineering.
通过将变换光学的概念引入水波的操控中，我们设计并实验演示了两种基于法布里-珀罗共振的梯度深度轮廓的环形波聚焦器件。我们的测量和数值模拟证实了环形器件的聚焦效果，并表明它们对水波是有效地不可见的。我们表明，变换光学是设计用于提高波浪能收集效率的器件的有效框架，我们期望在海岸线海洋工程中有潜在的应用。
