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History of our technology

Acoustic Metamaterials

As one of the pioneers of acoustic metamaterials, Prof. Ping Sheng’s research group first proposed the concept of locally resonant phononic crystals in multiphase solid media.

Membrane-Type Metamaterials

For the first time, we have realised the design of metamaterials with "negative mass" in an elastic membrane system, which lays the foundation for the lightweight application of metamaterials.

Metamaterials for Sound Absorption

As one of the pioneers, we started to realise a series of highly efficient acoustic absorption designs based on the resonant properties of metamaterials.

Homogenisation Theory of Metamaterials

We proposed an effective medium theory based on modal expansion for metamaterials. Extending the applicability of traditional homogenisation theory to the resonance behaviour of metamaterials thus provides a basis for the design and development of metamaterials.

Acoustic Metasurface

Based on hybrid resonances, we realised a resonant structure with extremely low-frequency absorption capability and proposed the concept of acoustic metasurface for the first time.

Causality’s Role in Acoustic Absorption

We investigated the effect of causality in the process of material absorbing sound and proposed its specific constraints on the material's absorption performance for the first time.

Broadband Metamaterial Absorber

By establishing a design strategy for a large number of resonant elements, we achieved the world's first broadband metamaterial absorber that can efficiently absorb full-band sounds in spaces far below that of conventional acoustic materials and achieve the limit of causality.


Locally resonant sonic materials.

Liu, Z., Zhang, X., Mao, Y., Zhu, Y.Y., Yang, Z., Chan, C.T. and Sheng, P., 2000. Science, 289(5485), pp.1734-1736.

Membrane-type acoustic metamaterial with negative dynamic mass.

Yang, Z., Mei, J., Yang, M., Chan, N.H. and Sheng, P., 2008. Physical review letters, 101(20), p.204301.

Dark acoustic metamaterials as super absorbers for low-frequency sound.

Mei, J., Ma, G., Yang, M., Yang, Z., Wen, W. and Sheng, P., 2012. Nature communications, 3(1), pp.1-7.

Coupled membranes with doubly negative mass density and bulk modulus.

Yang, M., Ma, G., Yang, Z. and Sheng, P., 2013. Physical review letters, 110(13), p.134301.

Low-frequency narrow-band acoustic filter with large orifice.

Ma, G., Yang, M., Yang, Z. and Sheng, P., 2013. Applied Physics Letters, 103(1), p.011903.

Homogenization scheme for acoustic metamaterials.

Yang, M., Ma, G., Wu, Y., Yang, Z. and Sheng, P., 2014. Physical Review B, 89(6), p.064309.

Acoustic metasurface with hybrid resonances.

Ma, G., Yang, M., Xiao, S., Yang, Z. and Sheng, P., 2014. Nature materials, 13(9), pp.873-878.

Subwavelength total acoustic absorption with degenerate resonators.

Yang, M., Meng, C., Fu, C., Li, Y., Yang, Z. and Sheng, P., 2015. Applied Physics Letters, 107(10), p.104104.

Sound absorption by subwavelength membrane structures: A geometric perspective.

Yang, M., Li, Y., Meng, C., Fu, C., Mei, J., Yang, Z. and Sheng, P., 2015. Comptes Rendus Mécanique, 343(12), pp.635-644.

Optimal sound-absorbing structures.

Yang, M., Chen, S., Fu, C. and Sheng, P., 2017. Materials Horizons, 4(4), pp.673-680.

Hybrid membrane resonators for multiple frequency asymmetric absorption and reflection in large waveguide.

Fu, C., Zhang, X., Yang, M., Xiao, S. and Yang, Z., 2017. Applied Physics Letters, 110(2), p.021901.

Sound absorption structures: From porous media to acoustic metamaterials.

Yang, M. and Sheng, P., 2017. Annu. Rev. Mater. Res, 47(1), pp.83-114.

Breaking the barriers: advances in acoustic functional materials.

Ge, H., Yang, M., Ma, C., Lu, M.H., Chen, Y.F., Fang, N. and Sheng, P., 2018. National Science Review, 5(2), pp.159-182.

Conceptual-based design of an ultrabroadband microwave metamaterial absorber.

Qu, S., Hou, Y. and Sheng, P., 2021. Proceedings of the National Academy of Sciences, 118(36), p.e2110490118.

Going Beyond the Causal Limit in Acoustic Absorption.

Mak, H.Y., Zhang, X., Dong, Z., Miura, S., Iwata, T. and Sheng, P., 2021. Physical Review Applied, 16(4), p.044062.

Underwater metamaterial absorber with impedance-matched composite.

Qu, S., Gao, N., Tinel, A., Morvan, B., Romero-García, V., Groby, J.P. and Sheng, P., 2022. Science Advances, 8(20), p.eabm4206.