| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1816039 | Physica B: Condensed Matter | 2007 | 8 Pages |
Abstract
In this article, we report both theoretical calculation and experimental observation of acoustic waves abnormally through a one-dimensional layered transmitted phononic crystal at frequencies within the band gap into a material of large acoustic impedance mismatch, with an efficiency as high as unity. The transmission peaks can be interpreted as a result of the interference of acoustic waves reflected from all periodically aligned interfaces. The condition for the appearance of peaks is analyzed in detail and the optimized layer number is given for different configurations.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Degang Zhao, Wengang Wang, Zhengyou Liu, Jing Shi, Weijia Wen,