Research Elastic / Acoustic Metamaterials Elastic / Acoustic metamaterials are artificial materials that can even realize negative density or stiffness. With the negative parameters, one can break-through the current technical limit in vibration / acoustics. Phononic Crystals Phononic crystals are crystal structures with periodically arranged inclusions or holes. Despite of its simple configuration, phononic crystal can be used for high-performance vibration or acoustic devices.
