title: Extraordinary acoustic transmission through annuluses in air and its applications in acoustic beam splitter and concentrator.
abstract: We report an extraordinary acoustic transmission through two layer annuluses made of metal cylinders in air both numerically and experimentally. The effect arises from the enhancement and reconstruction of the incident source induced by different Mie-resonance modes of the annuluses. The proposed system takes advantages of the consistency in the waveform between the input and output waves, the high amplitude amplification of output waves, and the easy adjustment of structure. More interestingly, we investigate the applications of the extraordinary acoustic transmission in the acoustic beam splitter and acoustic concentrator. Our finding should have an impact on ultrasonic applications.
authors: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China.
authors: Yong
authors: Y
authors: Ge
authors: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China.
authors: Hong-Xiang
authors: HX
authors: Sun
authors: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China.
authors: Shu-Sen
authors: SS
authors: Liu
authors: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China.
authors: Shou-Qi
authors: SQ
authors: Yuan
authors: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China.
authors: Jian-Ping
authors: JP
authors: Xia
authors: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China.
authors: Yi-Jun
authors: YJ
authors: Guan
authors: Lab of Modern Acoustics, Institute of Acoustics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
authors: Shu-Yi
authors: SY
authors: Zhang