Experimental realization of broadband control of water-wave-energy amplification in chirped arrays
Experimental realization of broadband control of water-wave-energy amplification in chirped arrays
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DOI：
10.1103/physrevfluids.5.062801
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发表时间：
2020-06
影响因子：
2.7
通讯作者：
A. Archer;Hugh Wolgamot;J. Orszaghova;Luke G. Bennetts;M. Peter;R. Craster
中科院分区：
文献类型：
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作者：
A. Archer;Hugh Wolgamot;J. Orszaghova;Luke G. Bennetts;M. Peter;R. Craster
自然环境中的水波是典型的宽带、非线性和动态现象。利用光学中为慢光开发的概念，我们解决了设计阵列以控制波能空间分布的挑战，并在各个位置放大目标频带内的特定频率。米级的波浪传播实验中，入射波与8个垂直圆柱体的啁啾阵列相互作用，证明了在宽频率范围内的显着放大，正如数值和理论预测的那样
Water waves in natural environments are typically broadband, nonlinear, and dynamic phenomena. Taking concepts developed for slow light in optics, we address the challenge of designing arrays to control the spatial distribution of wave energy, and amplify specific frequencies from within target frequency bands at individual locations. Meter-scale wave-flume experiments, in which incident waves interact with a chirped array of eight vertical cylinders, demonstrate significant amplifications over a broad frequency range, as predicted numerically and theoretically