TY - JOUR
T1 - Multiband Asymmetric Transmission of Airborne Sound by Coded Metasurfaces
AU - Xie, Boyang
AU - Cheng, Hua
AU - Tang, Kun
AU - Liu, Zhengyou
AU - Chen, Shuqi
AU - Tian, Jianguo
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/2/9
Y1 - 2017/2/9
N2 - We present the design, characterization, and theoretical and experimental demonstration of multiband asymmetric transmission of airborne sound using an ultrathin coded metasurface formed by an alternating arrangement of the coding elements 0 and 1. The asymmetric transmission effect can be easily controlled to selectively achieve off and on by coding different patterns. Both frequency- and angle-selective transmission is discussed. The proposed multiband asymmetric transmission stems from the constructive and destructive interferences of acoustic-wave coupling between the coded elements. The experimental results are in relative agreement with numerical simulations. This work opens an alternative path for ultrathin acoustic-device design and shows promise for application in acoustic rectification and noise control.
AB - We present the design, characterization, and theoretical and experimental demonstration of multiband asymmetric transmission of airborne sound using an ultrathin coded metasurface formed by an alternating arrangement of the coding elements 0 and 1. The asymmetric transmission effect can be easily controlled to selectively achieve off and on by coding different patterns. Both frequency- and angle-selective transmission is discussed. The proposed multiband asymmetric transmission stems from the constructive and destructive interferences of acoustic-wave coupling between the coded elements. The experimental results are in relative agreement with numerical simulations. This work opens an alternative path for ultrathin acoustic-device design and shows promise for application in acoustic rectification and noise control.
UR - http://www.scopus.com/inward/record.url?scp=85014585203&partnerID=8YFLogxK
U2 - 10.1103/physrevapplied.7.024010
DO - 10.1103/physrevapplied.7.024010
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AN - SCOPUS:85014585203
SN - 2331-7019
VL - 7
JO - Physical Review Applied
JF - Physical Review Applied
IS - 2
M1 - 024010
ER -