AIP Advances (May 2016)

Modulation of water surface waves with a coiling-up-space metasurface

  • H. T. Sun,
  • J. S. Wang,
  • Y. Cheng,
  • Q. Wei,
  • X. J. Liu

DOI
https://doi.org/10.1063/1.4950962
Journal volume & issue
Vol. 6, no. 5
pp. 055017 – 055017-6

Abstract

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We have designed a gradient-index (GRIN) metasurface to modulate water surface waves (WSWs). The metasurface is composed of an array of coiling-up-space units with a deep sub-wavelength scale, and can focus/scatter WSWs when the units are arranged elaborately and pierced into water. The modulation of WSWs has been ascribed to the relative effective refractive GRIN of the coiling-up-space units, which can be tuned by changing the parameters such as the plate length of units. This work may have potential application in energy extraction of water wave.