Research / 2019 / Article / Fig 3

Research Article

Conformally Mapped Multifunctional Acoustic Metamaterial Lens for Spectral Sound Guiding and Talbot Effect

Figure 3

Sound guiding effect. (a) The simulated absolute sound pressure distribution of Airy beam incident on the Mikaelian lens with the perfect continuous refractive index distribution. (b) The simulated acoustic field distribution of Airy beam incident on the designed Mikaelian lens with the real cross-channel metamaterial structure. (c) The experimentally measured absolute sound pressure distribution for the area marked with the cyan box in (b). (d) The normalized profiles for the dotted lines marked in (a–c).