Reconfigurable dynamic acoustic holography with acoustically transparent and programmable metamaterial.

ABSTRACT: The ability to manipulate acoustic fields in a real-time and high-resolution manner can open up many opportunities for engineering and medical applications. Realising this would demand an acoustic metamaterial that can modulate acoustic waves in a programmable manner. We achieve this goal using a crosslinked semi-crystalline polymer for which any arbitrary modulus pattern can be repeatedly encoded/erased in roughly 13 minutes. Critically and surprisingly, the material allows acoustic wave transmission with low attenuation, despite its multiphase nature. With the modulus pattern and acoustic transparency, reconfigurable phase holograms can be created. Combined with an electrically switchable and compact partitioned piezo-electric transducer, the device allows generating acoustic fields with

SUBMITTER: Zhang M 

PROVIDER: S-EPMC12521474 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature