Perfect absorption of low-frequency sound waves by critically coupled subwavelength resonant system

The perfect absorption (PA) for low-frequency audible sound waves has been achieved by critically coupling the inherent loss factor to the inherent leakage factor of a system, which is constructed by attaching a deep-subwavelength lossy resonant plate (LRP) to a backed rigid wall closely. We have ce...

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Veröffentlicht in:	Applied physics letters 2017-01, Vol.110 (2)
Hauptverfasser:	Long, Houyou, Cheng, Ying, Tao, Jiancheng, Liu, Xiaojun
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Applied physics Broadband Coupling Graphical methods Rigid walls Sonar Sound transmission Sound waves
Online-Zugang:	Volltext
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