Figure 4 | Scientific Reports

Figure 4

From: Acoustic rainbow trapping by coiling up space

Figure 4

(a) The time-dependent incident pressure signal containing simultaneously three specific frequencies 4.2 kHz, 5.8 kHz and 9.2 kHz. The inset shows the zoomed-in incident signal. (b–h) The detected pressure signal at the bottom of seven representative channels for the space-coiling structure. The obvious enhancement of the pressure signal amplitude is noticed in channel 1, 15 and 30.

Back to article page