Acoustic Angle-Selective Transmission Based on Binary Phase Gratings
Name
PhysRevApplied.14.064058.pdf
Description
Published version
Size
1.09 MB
Format
Unknown
Checksum (MD5)
2530024109e2a3b7712f51c06b3f77a8
Author(s)
Ma, Chu
Li, Xinhao
Fang, Nicholas X
Date Issued
2020
Journal
Physical Review Applied
Publisher
American Physical Society (APS)
Citation
Ma, Chu, Li, Xinhao and Fang, Nicholas X. 2020. "Acoustic Angle-Selective Transmission Based on Binary Phase Gratings." Physical Review Applied, 14 (6).
Version
Final published version
Abstract
© 2020 American Physical Society. Angle-selective transmission is the function of allowing a wave of certain incident angle to pass through the system. It is one of the essential functions in analog wave filtering and control systems. However, the incident-angle dependence and frequency dependence of wave transmission in existing systems are always coupled and cannot be controlled individually without influencing the other. This work reports the design of an angle-selection system that can decouple the incident-angle dependence and frequency dependence in acoustic transmission. The system is formed by the combination of two binary phase gratings with different grating periods. It selects not only the angle of incident wave, but also the frequency. The selected angle and frequency can be tuned independently by changing different geometric parameters in the binary phase gratings. The designed double grating system has the potential to serve as the building elements to construct arbitrary wave-filtering systems in the frequency-angle space, such as the broadband angle-selection system.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVAPPLIED.14.064058
