Figure 6
From: Manipulating Water Wave Propagation via Gradient Index Media
Experimental results of wave focusing.
(a) Images of the sample device for focusing water waves. (b–e) Snapshots of water wave patterns at (b) 8.18 Hz, (c) 6.62 Hz, (d) 9.50 Hz and (e) 11.50 Hz when the plane waves propagate from the left edge and traverse the device with a length of 261.14 mm. (f) Snapshots of water wave patterns under the same conditions as (b), except that the device has a focal length of only 130.57 mm.
