Wave control and Manipulation by Acoustic/Elastic Metamaterials
I. Asymmetric wave transmission in Acoustic/Elastic Metamaterials
A diatomic acoustic/elastic metamaterial with large asymmetric wave transmission is proposed and verified by theoretical analysis and numerical modelling. This passive system does not require any frequency conversion, wave diffraction or external energy, which is vastly different from the previously reported works.
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Read the full article(s):
1. B. Li, S. Alamri and K.T. Tan. A diatomic elastic metamaterial for tunable asymmetric wave transmission in multiple frequency bands, Scientific Reports 7(2017): 6226.
2. B. Li and K.T. Tan. Asymmetric wave transmission in a diatomic acoustic/elastic metamaterial, Journal of Applied Physics 120 (2016): 075103.
II. Elastic-wave cloaking and wave-front shaping
Elastic-wave cloaking and wave-front shaping are realized by our proposed elastic metamaterials.
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