1. Moore, J. A. & Lyon, R. H. Resonant porous material absorbers. J. Acoust. Soc. Am. 72, 1989–1999 (1982).
2. Garcia-Chocano, V. M., Cabrera, S. & Sanchez-Dehesa, J. Broadband sound absorption by lattices of microperforated cylindrical shells. Appl. Phys. Lett. 101, 184101 (2012).
3. Fenech, B., Keith, G. M. & Jacobsen, F. The use of microperforated plates to attenuate cavity resonances. J. Acoust. Soc. Am. 120, 1851–1859 (2006).
4. Jiang, X. et al. Ultra-broadband absorption by acoustic metamaterials. Appl. Phys. Lett. 105, 243505 (2014).
5. Liu, X., Starr, T., Starr, A. F. & Padilla, W. J. Infrared spatial and frequency selective metamaterial with near-unity absorbance. Phys. Rev. Lett. 104, 207403 (2010).