Abstract
Guided sound waves from arrays of acoustic transducers are key to myriad techniques in medicine, engineering, and the physical sciences, but digital methods of wave-field control are restrictive. This study investigates physical reconfiguration of array elements according to the folding sequences of origami, which allows portability. Reconfiguring a tessellated array is more effective than digital methods of acoustic-wave guidance, using fewer array elements, while refinement of array topology tends to the ideal case of geometrical acoustics. These findings may promote adaptive, deployable waveguides for $e.g.$ medical ultrasound or the study of underwater ecosystems.
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