Experimental realization of phonon demultiplexing in three-dimensions

Abstract

Phononic metamaterials enabled the realization of many acoustic components analogous to their electronic counterparts, such as transistors, logic gates and calculators. A key component among these is the demultiplexer, a device that receives multiple signals and sorts them based on their frequencies into separate channels. Previous experimental realizations of acoustic and elastic multiplexers have employed plates with pillars or holes to demultiplex frequencies. However, existing realizations are confined to two-dimensions, which can limit potential acoustic or elastic circuit design. Here we show the first experimental realization of a three-dimensional, four channel phononic demultiplexer. Our design methodology is based on bundles of pass-bands within a large band gap that can easily be tuned for multi-channel frequency demultiplexing. The proposed design can be utilized in acoustic and elastic information processing, nondestructive evaluation and communication applications among others.

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• PT-Symmetric Phonon Laser
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• Quantum thermal transistor
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Cited by in corpus (3)

• Scalable 3D printing for topological mechanical metamaterials
• Seashell-inspired polarization-sensitive tonotopic metasensor
• Static and dynamic analysis of auxetic three-dimensional curved metamaterials in both axial and circumferential directions